Walker, J. E., & Shea, T. M. (1988). Behavior management: A practical approach for educators (4th ed.). Merrill.
Citace podle Chicago (17th ed.)Walker, James Edwin, a Thomas M. Shea. Behavior Management: A Practical Approach for Educators. 4th ed. Columbus, Ohio: Merrill, 1988.
Citace podle MLA (9th ed.)Walker, James Edwin, a Thomas M. Shea. Behavior Management: A Practical Approach for Educators. 4th ed. Merrill, 1988.
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