COLLETTE, A. T; CHIAPPETTA, E. L. 1989. Science Instruction in the Middle and Secondary Schools. 2.Edition. Columbus: Merrill Publishing Company.
Citáce podľa APA (7th ed.)Collette, A. T., & Chiappetta, E. L. (1989). Science Instruction in the Middle and Secondary Schools (2.Edition.). Merrill Publishing Company.
Citácia podle Chicago (17th ed.)Collette, Alfred T., a Eugene L. Chiappetta. Science Instruction in the Middle and Secondary Schools. 2.Edition. Columbus: Merrill Publishing Company, 1989.
Citácia podľa MLA (8th ed.)Collette, Alfred T., a Eugene L. Chiappetta. Science Instruction in the Middle and Secondary Schools. 2.Edition. Merrill Publishing Company, 1989.
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