APA Citation

Pontryagin, L. S., & Guenther, P. (1958). Topologische Gruppen. Leipzig: Teubner.

Chicago Style Citation

Pontryagin, Leon S., andfavorite P. Guenther. Topologische Gruppen. Leipzig: Teubner, 1958.

MLA Citation

Pontryagin, Leon S., andfavorite P. Guenther. Topologische Gruppen. Leipzig: Teubner, 1958.

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