APA (7th ed.) Citation

Seifert, H., & Threlfall, W. (1947). Lehrbuch der Topologie. Chelsea Publ.

Chicago Style (17th ed.) Citation

Seifert, Herbert, and William Threlfall. Lehrbuch Der Topologie. New York: Chelsea Publ, 1947.

MLA (9th ed.) Citation

Seifert, Herbert, and William Threlfall. Lehrbuch Der Topologie. Chelsea Publ, 1947.

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