APA (7th ed.) Citation

Henkler, P. Raumlehre. Union Deutsche Verlagsges.

Chicago Style (17th ed.) Citation

Henkler, Paul. Raumlehre. Berlin: Union Deutsche Verlagsges.

MLA (9th ed.) Citation

Henkler, Paul. Raumlehre. Union Deutsche Verlagsges.

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