Cita APA (7a ed.)

Oskamp, S., & Cameron, C. (1977). Attitudes and opinions. Prentice-Hall.

Cita Chicago Style (17a ed.)

Oskamp, Stuart, y Catherine Cameron. Attitudes and Opinions. Englewood Cliffs: Prentice-Hall, 1977.

Cita MLA (9a ed.)

Oskamp, Stuart, y Catherine Cameron. Attitudes and Opinions. Prentice-Hall, 1977.