APA (7th ed.) Zitazioa

Mussen, P. H. (1979). Psychological development a life span approach. Harper & Row.

Chicago Style (17th ed.) Zitazioa

Mussen, Paul Henry. Psychological Development a Life Span Approach. Cambridge: Harper & Row, 1979.

MLA (9th ed.) Zitazioa

Mussen, Paul Henry. Psychological Development a Life Span Approach. Harper & Row, 1979.