Walraven, M. G., & Fitzgerald, H. E. (1988). Psychology 88/89 (Annual ed.). The Dushkin Publishing Group.
Tohutoru Kātū Chicago (17th ed.)Walraven, Michael G., me Hiram E. Fitzgerald. Psychology 88/89. Annual ed. Connecticut: The Dushkin Publishing Group, 1988.
Tohutoro MLA (9th ed.)Walraven, Michael G., me Hiram E. Fitzgerald. Psychology 88/89. Annual ed. The Dushkin Publishing Group, 1988.
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