APA-čujuhus (7. p.)
Wittig, A. F. (1981). Schaum's outline of theory and problems of psychology ... McGraw-Hill.
Chicago-čujuhus (17. p.)
Wittig, Arno F. Schaum's Outline of Theory and Problems of Psychology ... New york: McGraw-Hill, 1981.
MLA-čujuhus (9. p.)
Wittig, Arno F. Schaum's Outline of Theory and Problems of Psychology ... McGraw-Hill, 1981.
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