Hull, E. M., & Kalat, J. W. (1995). Study guide to accompany Kalat's, Biological psychology, fifth edition. Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)Hull, Elaine M., agus James W. Kalat. Study Guide to Accompany Kalat's, Biological Psychology, Fifth Edition. Pacific Grove, CA.: Brooks/Cole, 1995.
Lua MLA (8ú heag.)Hull, Elaine M., agus James W. Kalat. Study Guide to Accompany Kalat's, Biological Psychology, Fifth Edition. Brooks/Cole, 1995.
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