Dyfyniad APA

Whitbourne, S. K. (2001). Adult development and aging: Biopsychosocial perspectives. New York: John Wiley and Sons.

Dyfyniad Arddull Chicago

Whitbourne, Susan Krauss. Adult Development and Aging: Biopsychosocial Perspectives. New York: John Wiley and Sons, 2001.

Dyfyniad MLA

Whitbourne, Susan Krauss. Adult Development and Aging: Biopsychosocial Perspectives. New York: John Wiley and Sons, 2001.

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