Tohutoro APA (7th ed.)

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

Tohutoru Chicago (17th ed.)

Oskamp, Stuart. Attitudes and Opinions. Englewood Cliffs, N.J.: Prentice-Hall, 1977.

Tohutoro MLA (8th ed.)

Oskamp, Stuart. Attitudes and Opinions. Prentice-Hall, 1977.