Dyfyniad APA

Mussen, P. (1973). The psychological development of the child (2nd ed.). Prentice - hall.

Dyfyniad Arddull Chicago

Mussen, Paul. The Psychological Development of the Child. 2nd ed. New Jersey: Prentice - hall, 1973.

Dyfyniad MLA

Mussen, Paul. The Psychological Development of the Child. 2nd ed. Prentice - hall, 1973.

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