APA (7th ed.) Citation

Frey, G. (1984). Elementare Zahlentheorie. Vieweg.

Chicago Style (17th ed.) Citation

Frey, Gerhard. Elementare Zahlentheorie. Braunschweig [u.a.]: Vieweg, 1984.

MLA (9th ed.) Citation

Frey, Gerhard. Elementare Zahlentheorie. Vieweg, 1984.

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