APA (7th ed.) Citation

Volkelt, H. (1963). Grundfragen der Psychologie. Beck.

Chicago Style (17th ed.) Citation

Volkelt, Hans. Grundfragen Der Psychologie. München: Beck, 1963.

MLA (8th ed.) Citation

Volkelt, Hans. Grundfragen Der Psychologie. Beck, 1963.

Warning: These citations may not always be 100% accurate.