APA (7th ed.) Citation

Chriatensen, H., & Petersen, A. (1943). Hverdagens naturlaere. Hirschsprung.

Chicago Style (17th ed.) Citation

Chriatensen, Harry, and Anton Petersen. Hverdagens Naturlaere. København: Hirschsprung, 1943.

MLA (9th ed.) Citation

Chriatensen, Harry, and Anton Petersen. Hverdagens Naturlaere. Hirschsprung, 1943.

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