APA (7th ed.) Citation

Koester, F. (1915). Secrets of German progress. The Fatherland Corp.

Chicago Style (17th ed.) Citation

Koester, Frank. Secrets of German Progress. New York: The Fatherland Corp, 1915.

MLA (9th ed.) Citation

Koester, Frank. Secrets of German Progress. The Fatherland Corp, 1915.

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