全文获取类型
收费全文 | 124692篇 |
免费 | 1635篇 |
国内免费 | 236篇 |
专业分类
教育 | 86620篇 |
科学研究 | 13635篇 |
各国文化 | 1971篇 |
体育 | 9527篇 |
综合类 | 173篇 |
文化理论 | 1083篇 |
信息传播 | 13554篇 |
出版年
2021年 | 959篇 |
2020年 | 1676篇 |
2019年 | 2581篇 |
2018年 | 3119篇 |
2017年 | 3407篇 |
2016年 | 3444篇 |
2015年 | 2320篇 |
2014年 | 3186篇 |
2013年 | 27265篇 |
2012年 | 2392篇 |
2011年 | 2766篇 |
2010年 | 2374篇 |
2009年 | 2615篇 |
2008年 | 2427篇 |
2007年 | 2172篇 |
2006年 | 2370篇 |
2005年 | 2363篇 |
2004年 | 3063篇 |
2003年 | 2379篇 |
2002年 | 2180篇 |
2001年 | 2120篇 |
2000年 | 1815篇 |
1999年 | 1655篇 |
1998年 | 1470篇 |
1997年 | 1540篇 |
1996年 | 1703篇 |
1995年 | 1467篇 |
1994年 | 1465篇 |
1993年 | 1468篇 |
1992年 | 1544篇 |
1991年 | 1468篇 |
1990年 | 1455篇 |
1989年 | 1398篇 |
1988年 | 1269篇 |
1987年 | 1178篇 |
1986年 | 1215篇 |
1985年 | 1492篇 |
1984年 | 1303篇 |
1983年 | 1298篇 |
1982年 | 1272篇 |
1981年 | 1184篇 |
1980年 | 1175篇 |
1979年 | 1292篇 |
1978年 | 1227篇 |
1977年 | 1136篇 |
1976年 | 1007篇 |
1975年 | 820篇 |
1974年 | 826篇 |
1973年 | 797篇 |
1971年 | 650篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
231.
232.
233.
234.
235.
K Olschner 《Bulletin of the Medical Library Association》1972,60(1):1-13
This study, an historical survey of medical journals in Louisiana before the outbreak of the Civil War in 1861, revealed that nine journals made an appearance during the period covered-all of them published in New Orleans. Of these, two were French language journals published by a French medical society. The others were all published by individuals rather than by professional societies. Medical practices, interests, and problems of the times were clearly reflected on the pages of the journals. It is evident that medical journalism reached a high plane in the era before the Civil War. Of the nine periodicals, only one emerged as a permanent publication after the War. 相似文献
236.
S Shirley 《Bulletin of the Medical Library Association》1969,57(4):391-398
An attempt has been made in this bibliography to represent the various viewpoints concerning education for medical librarianship equally. The topics covered include: general background reading and readings for those interested in establishing courses in medical librarianship. The former includes annotations on the history and international aspects of the subject. The latter consists of annotations of articles on early courses and present courses in medical librarianship. A final area discussed is the Medical Library Association's Code for the Training and Certification of Medical Librarians. 相似文献
237.
K M Smith 《Bulletin of the Medical Library Association》1969,57(4):362-367
The history of nursing education in America is briefly told, with the growth of education in institutions of higher learning emphasized. Two trends in nursing education are paralleled by similar developments in nursing literature. The growth of scholarship in nursing is also noted. It is pointed out that nursing is a discipline in its own right, and that training for leadership is required. Continuing education programs are mentioned, together with the increase in nursing literature. Integrated libraries for the health sciences are recommended. 相似文献
238.
L S Mullins 《Bulletin of the Medical Library Association》1966,54(3):230-242
Adequate research in the peripheral field of medical geography requires familiarity with the literature of medicine, geography, and other environmentally oriented fields. The pertinent literature of the two primary disciplines, as well as that of anthropology, nutrition, and human bioclimatology, is surveyed from a bibliographical point of view. A brief review of historical sources is presented, followed by a discussion of the contemporary organizations, both international and national, active in the field. Emphasis is placed on the publishing programs and projects, maps, atlases, symposia, reports, and other literature sponsored or stimulated by these organizations. Regional bibliographical surveys for East Africa, India, and the Soviet Union are also noted. Pertinent aspects of bibliographies, indexes, abstracts, library card catalogs and accession lists, and other resources are listed, with emphasis on the various subject headings and other approaches to them. Throughout, the sources of information are approached from a multidisciplinary and interdisciplinary viewpoint. 相似文献
239.
240.