APA (7th ed.) Citation

Aleksandrov, P. S., & Hopf, H. (1965). Topologie. Chelsea Pub. Co..

Chicago Style (17th ed.) Citation

Aleksandrov, P. S., and Heinz Hopf. Topologie. Bronx, N. Y.: Chelsea Pub. Co., 1965.

MLA (9th ed.) Citation

Aleksandrov, P. S., and Heinz Hopf. Topologie. Chelsea Pub. Co., 1965.