Krech, D., & Crutchfield, R. S. (1973). Grundlagen der Psychologie. Beltz.
Chicago Style (17th ed.) CitationKrech, David, and Richard S. Crutchfield. Grundlagen Der Psychologie. Weinheim Basel: Beltz, 1973.
MLA (8th ed.) CitationKrech, David, and Richard S. Crutchfield. Grundlagen Der Psychologie. Beltz, 1973.
Warning: These citations may not always be 100% accurate.