APA (7th ed.) Citation

Cohn, P. M. (1971). Free rings and their relations. Academic Press.

Chicago Style (17th ed.) Citation

Cohn, P. M. Free Rings and Their Relations. London: Academic Press, 1971.

MLA (8th ed.) Citation

Cohn, P. M. Free Rings and Their Relations. Academic Press, 1971.

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