The economics of advertising:
a study
prepared by the Economists Advisory Group.

APA Citation

Economists Advisory Group., Advertising Association (Great Britain). (1967). The economics of advertising: a study. London: Advertising Association.

MLA Citation

Economists Advisory Group, and Advertising Association (Great Britain). The Economics of Advertising: a Study. London: Advertising Association, 1967.

Warning: These citations may not always be complete (especially for serials).