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

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

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