"Contains 413 numbered and annotated entries arranged alphabetically by author. The coverage appears to be from the mid-1940's to the mid-1960's. Lists of the relevant numbers are given under the following headings: I. Communication systems (subdivided into mass media systems and oral systems); II. Communication content (mass media content and oral content); III. Communication and individual change (research on the effects of communication exposure and guides to assessing communication effects); IV. Communication, education and national development (communication and development; education and development); and V. Other contributors to national development (social change, political change, and economic development)." (Rahim 1976)