APA (7th ed.) Citation

Baumgartner, L. (1921). Gruppentheorie. <<de>> Gruyter.

Chicago Style (17th ed.) Citation

Baumgartner, Ludwig. Gruppentheorie. Berlin [u.a.]: <<de>> Gruyter, 1921.

MLA (9th ed.) Citation

Baumgartner, Ludwig. Gruppentheorie. <<de>> Gruyter, 1921.

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