British and Canadian Broadcasting

R.A. Critchley, Television and Media Effect: A Review of the Relevant Research (BBTA Occasional Papers No. 9, 1974—E 3 or about $7.50, paper):

Colour 69: An Advertiser's Guide to Colour Television (1969, about El or $3.00)

Canadian Ownership in Broadcasting: A Report on the Foreign Divestiture Process (Ottawa: Canadian Radio-Television Commission, 1974—apparently free on request, paper).