Kail, R. V., & Cavanaugh, J. C. (2023). Human development: A life-span view (9th edition.). Cengage Learning.
Citace podle Chicago (17th ed.)Kail, Robert V., a John C. Cavanaugh. Human Development: A Life-span View. 9th edition. Australia: Cengage Learning, 2023.
Citace podle MLA (9th ed.)Kail, Robert V., a John C. Cavanaugh. Human Development: A Life-span View. 9th edition. Cengage Learning, 2023.
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