Dyfyniad APA

Kail, R. V., & Cavanaugh, J. C. (2023). Human development: A life-span view (9th edition.). Cengage Learning.

Dyfyniad Arddull Chicago

Kail, Robert V., and John C. Cavanaugh. Human Development: A Life-span View. 9th edition. Australia: Cengage Learning, 2023.

Dyfyniad MLA

Kail, Robert V., and John C. Cavanaugh. Human Development: A Life-span View. 9th edition. Cengage Learning, 2023.

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