John Cavanaugh. (2018). Adult Development and Aging, 8th Edition (eighth edition.). Cengage Learning.
Cita Chicago Style (17a ed.)John Cavanaugh. Adult Development and Aging, 8th Edition. eighth edition. United States of America: Cengage Learning, 2018.
Cita MLA (8a ed.)John Cavanaugh. Adult Development and Aging, 8th Edition. eighth edition. Cengage Learning, 2018.
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