Ellis, J. L., & Blank, S. S. (1985). Creative problem solving in every classroom. Department of Educational Psychology and Special Education.
Citace podle Chicago (17th ed.)Ellis, Julie L., a Stanley S. Blank. Creative Problem Solving in Every Classroom. British Columbia, CAN: Department of Educational Psychology and Special Education, 1985.
Citace podle MLA (9th ed.)Ellis, Julie L., a Stanley S. Blank. Creative Problem Solving in Every Classroom. Department of Educational Psychology and Special Education, 1985.
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