APA-viite (7. p.)

Duffy, K. G. (1999). Personal growth and behavior 99/00 (19th ed.). Dushkin/Mcgraw-Hill.

Chicago-viite (17. p.)

Duffy, Karen G. Personal Growth and Behavior 99/00. 19th ed. Guilford, Conn: Dushkin/Mcgraw-Hill, 1999.

MLA-viite (9. p.)

Duffy, Karen G. Personal Growth and Behavior 99/00. 19th ed. Dushkin/Mcgraw-Hill, 1999.