Dyfyniad APA

Kail, R. V., & Robert V. Kail; John C. Cavanaugh. (2007). Human development: A life-span view. Belmont, CA: Wadsworth Thomson Learning.

Dyfyniad Arddull Chicago

Kail, Robert V., và Robert V. Kail; John C. Cavanaugh. Human Development: A Life-span View. Belmont, CA: Wadsworth Thomson Learning, 2007.

Dyfyniad MLA

Kail, Robert V., và Robert V. Kail; John C. Cavanaugh. Human Development: A Life-span View. Belmont, CA: Wadsworth Thomson Learning, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.