Crain, W. (2000). Theories of development: Concepts and applications (4th edition.). Prentice Hall.
Citace podle Chicago (17th ed.)Crain, William. Theories of Development: Concepts and Applications. 4th edition. Upper Saddle River, New Jersey: Prentice Hall, 2000.
Citace podle MLA (9th ed.)Crain, William. Theories of Development: Concepts and Applications. 4th edition. Prentice Hall, 2000.
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