APA-čujuhus (7. p.)
Liebert, R. M. (1993). Personality: Strategies and issues (7th.ed.). Brooks / Cole.
Chicago-čujuhus (17. p.)
Liebert, Robert M. Personality: Strategies and Issues. 7th.ed. California: Brooks / Cole, 1993.
MLA-čujuhus (9. p.)
Liebert, Robert M. Personality: Strategies and Issues. 7th.ed. Brooks / Cole, 1993.
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