Dyfyniad APA

Pikunas, J. (1976). Human development, an emergent science (3d ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Pikunas, Justin. Human Development, an Emergent Science. 3d ed. New York: McGraw-Hill, 1976.

Dyfyniad MLA

Pikunas, Justin. Human Development, an Emergent Science. 3d ed. McGraw-Hill, 1976.

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