Cita APA (7th ed.)

Crano, W. D., & Brewer, M. B. (1986). Principles and methods of social research. Allyn and Bacon.

Cita Chicago (17th ed.)

Crano, William D., i Marilynn B. Brewer. Principles and Methods of Social Research. Boston: Allyn and Bacon, 1986.

Cita MLA (9th ed.)

Crano, William D., i Marilynn B. Brewer. Principles and Methods of Social Research. Allyn and Bacon, 1986.