Dyfyniad APA

Cavanaugh, J. C., & Blanchard-Fields, F. Adult development and aging.

Dyfyniad Arddull Chicago

Cavanaugh, John C., và Fredda Blanchard-Fields. Adult Development and Aging.

Dyfyniad MLA

Cavanaugh, John C., và Fredda Blanchard-Fields. Adult Development and Aging.

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