Cita APA (7th ed.)

HUFFMAN, K., VERNOY, M., & VERNOY, J. (1997). Psychology in action.-- ed.4. John Wiley and Sons.

Cita Chicago (17th ed.)

HUFFMAN, Karen, Mark VERNOY, i Judith VERNOY. Psychology in Action.-- Ed.4. New York: John Wiley and Sons, 1997.

Cita MLA (9th ed.)

HUFFMAN, Karen, et al. Psychology in Action.-- Ed.4. John Wiley and Sons, 1997.