APA (7th ed.) Citation

Felgner, U. (1971). Models of ZF-Set Theory. Springer. https://doi.org/10.1007/BFb0061160

Chicago Style (17th ed.) Citation

Felgner, Ulrich. Models of ZF-Set Theory. Berlin [u.a.]: Springer, 1971. https://doi.org/10.1007/BFb0061160.

MLA (9th ed.) Citation

Felgner, Ulrich. Models of ZF-Set Theory. Springer, 1971. https://doi.org/10.1007/BFb0061160.