APA (7th ed.) Citation

Wittig, A. F. (2001). Schaum's outline of theory and problems of introduction to psychology (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Wittig, Arno F. Schaum's Outline of Theory and Problems of Introduction to Psychology. 2nd ed. New York: McGraw-Hill, 2001.

MLA (9th ed.) Citation

Wittig, Arno F. Schaum's Outline of Theory and Problems of Introduction to Psychology. 2nd ed. McGraw-Hill, 2001.