Cita APA (7a ed.)

Epstein, W., & Shontz, F. (1971). Psychology in progress. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Epstein, William, y Franklin Shontz. Psychology in Progress. New York: Holt, Rinehart and Winston, 1971.

Cita MLA (9a ed.)

Epstein, William, y Franklin Shontz. Psychology in Progress. Holt, Rinehart and Winston, 1971.