APA (7th ed.) Citation

Quedefeld, G. (1878). Ueber Sigmund von Birken.

Chicago Style (17th ed.) Citation

Quedefeld, Gustav. Ueber Sigmund Von Birken. Freienwalde a.O, 1878.

MLA (9th ed.) Citation

Quedefeld, Gustav. Ueber Sigmund Von Birken. 1878.

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