Mass media.
Contributors: Hopkins, Hedlin Limited.
Publisher: Information Canada
Published: 1970
Place of publication: [Ottawa
Language: eng
Subjects: Mass media -- Canada.
Notes: Includes bibliographical references.
Cover title.
Volume 2: 1973 printing.
Table of contents: value: v. 1. The uncertain mirror.; value: v. 2. Words, music, and dollars : a study of the economics of publishing and broadcasting in Canada by Hopkins, Hedlin Limited.