APA-čujuhus (7. p.)

Duffy, K. G. (1990). Personal growth and behavior 90/91. Dushkin.

Chicago-čujuhus (17. p.)

Duffy, Karen G. Personal Growth and Behavior 90/91. Dushkin, 1990.

MLA-čujuhus (9. p.)

Duffy, Karen G. Personal Growth and Behavior 90/91. Dushkin, 1990.

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