Cooper, J. O., Heron, T. E., & Heward, W. L. (1987). Applied behavior analysis. Merrill Pub. Co.
Lua i Stíl Chicago (17ú heag.)Cooper, John O., Timothy E. Heron, agus William L. Heward. Applied Behavior Analysis. Columbus: Merrill Pub. Co, 1987.
Lua MLA (9ú heag.)Cooper, John O., et al. Applied Behavior Analysis. Merrill Pub. Co, 1987.
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