APA (7th ed.) Citation

Roels, F. (1947). Handbock der psychologie. NV Standaard.

Chicago Style (17th ed.) Citation

Roels, F. Handbock Der Psychologie. NV Standaard, 1947.

MLA (8th ed.) Citation

Roels, F. Handbock Der Psychologie. NV Standaard, 1947.

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