Παραπομπή σε μορφή APA (7η εκδ.)

Wittig, A. F. (1977). Schaum's outline of theory and problems of introduction to psychology. McGraw-Hill Book Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wittig, Arno F. Schaum's Outline of Theory and Problems of Introduction to Psychology. New York: McGraw-Hill Book Company, 1977.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wittig, Arno F. Schaum's Outline of Theory and Problems of Introduction to Psychology. McGraw-Hill Book Company, 1977.