Dyfyniad APA

Walraven, M. G., & Fitzgerald, H. E. (1988). Psychology 88/89 (Annual ed.). The Dushkin Publishing Group.

Dyfyniad Arddull Chicago

Walraven, Michael G., and Hiram E. Fitzgerald. Psychology 88/89. Annual ed. Connecticut: The Dushkin Publishing Group, 1988.

Dyfyniad MLA

Walraven, Michael G., and Hiram E. Fitzgerald. Psychology 88/89. Annual ed. The Dushkin Publishing Group, 1988.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.