Berger, K. S. (2005). The developing person through the life span (6th ed.). Worth Publishers.
Chicago-viite (17. p.)Berger, Kathleen Stassen. The Developing Person Through the Life Span. 6th ed. New York: Worth Publishers, 2005.
MLA-viite (9. p.)Berger, Kathleen Stassen. The Developing Person Through the Life Span. 6th ed. Worth Publishers, 2005.
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