APA

VERNOY M., WILLIAMS B. & VERNOY J. (1991). Psychology in Action. New York: John Wiley & Sons.

Chicago

VERNOY Mark, WILLIAMS Barbara and VERNOY Judith. 1991. Psychology in Action. New York: John Wiley & Sons.

Harvard

VERNOY M., WILLIAMS B. and VERNOY J. (1991). Psychology in Action. New York: John Wiley & Sons.

MLA

VERNOY Mark, WILLIAMS Barbara and VERNOY Judith. Psychology in Action. New York: John Wiley & Sons. 1991.