APA (7th ed.) Citation

Grewe, R. (1966). On Ackermann's set theory.

Chicago Style (17th ed.) Citation

Grewe, Rudolf. On Ackermann's Set Theory. 1966.

MLA (9th ed.) Citation

Grewe, Rudolf. On Ackermann's Set Theory. 1966.

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