APA (7th ed.) Citation

Pfaff, A. (1883). Zur Erinnerung an Friedrich Ötker. Friedrich Perthes.

Chicago Style (17th ed.) Citation

Pfaff, Adam. Zur Erinnerung an Friedrich Ötker. Gotha: Friedrich Perthes, 1883.

MLA (9th ed.) Citation

Pfaff, Adam. Zur Erinnerung an Friedrich Ötker. Friedrich Perthes, 1883.

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