APA-čujuhus (7. p.)
Craig James R. (1986). Methods of Psychological research (2nd ed.). Cole Publ. Co..
Chicago-čujuhus (17. p.)
Craig James R. Methods of Psychological Research. 2nd ed. California: Cole Publ. Co., 1986.
MLA-čujuhus (9. p.)
Craig James R. Methods of Psychological Research. 2nd ed. Cole Publ. Co., 1986.
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