APA (7th ed.) Citation

Ludwig, E. (1929). July 1914 (1. publ.). Putnam.

Chicago Style (17th ed.) Citation

Ludwig, Emil. July 1914. 1. publ. London [u.a.]: Putnam, 1929.

MLA (9th ed.) Citation

Ludwig, Emil. July 1914. 1. publ. Putnam, 1929.

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