APA (7th ed.) Citation

Wittig, A. F. (1981). Schaumś outline of theory and problems of psychology learning. McGraw-Hill.

Chicago Style (17th ed.) Citation

Wittig, Arno F. Schaumś Outline of Theory and Problems of Psychology Learning. New York: McGraw-Hill, 1981.

MLA (9th ed.) Citation

Wittig, Arno F. Schaumś Outline of Theory and Problems of Psychology Learning. McGraw-Hill, 1981.