APA (7th ed.) Citation

Haefner, O. P. (1941). Hungersnot in England? Europa-Verl.

Chicago Style (17th ed.) Citation

Haefner, Otto Philipp. Hungersnot in England? London, Berlin [usw.]: Europa-Verl, 1941.

MLA (9th ed.) Citation

Haefner, Otto Philipp. Hungersnot in England? Europa-Verl, 1941.

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