Cita APA (7th ed.)

Sonquist, J. A., & Dunkelberg, W. C. (1977). Survey and opinion research: Procedures for processing and analysis. Prentice-Hall.

Cita Chicago (17th ed.)

Sonquist, John A., i William C. Dunkelberg. Survey and Opinion Research: Procedures for Processing and Analysis. Englewood Cliffs, N.J.: Prentice-Hall, 1977.

Cita MLA (9th ed.)

Sonquist, John A., i William C. Dunkelberg. Survey and Opinion Research: Procedures for Processing and Analysis. Prentice-Hall, 1977.