APA (7e ed.) Bronvermelding

Welch, S., & Comer, J. (1975). Public opinion: Its formation, measurement, and impact. Mayfield.

Chicago (17e ed.) Bronvermelding

Welch, Susan, en John Comer. Public Opinion: Its Formation, Measurement, and Impact. Palo Alto, Calif: Mayfield, 1975.

MLA (9e ed.) Bronvermelding

Welch, Susan, en John Comer. Public Opinion: Its Formation, Measurement, and Impact. Mayfield, 1975.