De Cecco, J. P., & Crawford, W. R. (1988). The psychology of learning and instruction: Educational psychology (2d ed.). Prentice-Hall.
Citace podle Chicago (17th ed.)De Cecco, John P., a William R. Crawford. The Psychology of Learning and Instruction: Educational Psychology. 2d ed. Englewood Cliffs, N.J., New Delhi: Prentice-Hall, 1988.
Citace podle MLA (8th ed.)De Cecco, John P., a William R. Crawford. The Psychology of Learning and Instruction: Educational Psychology. 2d ed. Prentice-Hall, 1988.
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