APA (7th ed.) Citation

Fisk, G. (1949). Defining and measuring radio audiences: A survey guide for radio stations. [publisher not identified].

Chicago Style (17th ed.) Citation

Fisk, George. Defining and Measuring Radio Audiences: A Survey Guide for Radio Stations. Pullman: [publisher not identified], 1949.

MLA (9th ed.) Citation

Fisk, George. Defining and Measuring Radio Audiences: A Survey Guide for Radio Stations. [publisher not identified], 1949.