Sigelman, C. K., & Rider, E. A. (2009). Life-span human development. Belmont, CA: Wadsworth, Cengage Learning.
Trích dẫn kiểu ChicagoSigelman, Carol K., và Elizabeth A. Rider. Life-span Human Development. Belmont, CA: Wadsworth, Cengage Learning, 2009.
Deismireacht MLASigelman, Carol K., và Elizabeth A. Rider. Life-span Human Development. Belmont, CA: Wadsworth, Cengage Learning, 2009.
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