APA (7th ed.) Citation

Geyser, J. (1920). Lehrbuch der allgemeinen Psychologie (3a ed.). W. Schöningh.

Chicago Style (17th ed.) Citation

Geyser, Joseph. Lehrbuch Der Allgemeinen Psychologie. 3a ed. Münster i.: W. Schöningh, 1920.

MLA (9th ed.) Citation

Geyser, Joseph. Lehrbuch Der Allgemeinen Psychologie. 3a ed. W. Schöningh, 1920.

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