APA (7th ed.) Citation

Folley, K. W. (1969). Semigroups. Academic Press.

Chicago Style (17th ed.) Citation

Folley, Karl W. Semigroups. New York: Academic Press, 1969.

MLA (8th ed.) Citation

Folley, Karl W. Semigroups. Academic Press, 1969.

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