Dyfyniad APA

Papalia, D. E., & Olds, S. W. (1995). Human development (Sixth edition.). McGraw-Hill.

Dyfyniad Arddull Chicago

Papalia, Diane E., and Sally Wendkos Olds. Human Development. Sixth edition. New York: McGraw-Hill, 1995.

Dyfyniad MLA

Papalia, Diane E., and Sally Wendkos Olds. Human Development. Sixth edition. McGraw-Hill, 1995.

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