APA (7th ed.) Citation

Higgins, P. M. (1992). Techniques of semigroup theory. Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Higgins, Peter M. Techniques of Semigroup Theory. Oxford [u.a.]: Oxford Univ. Press, 1992.

MLA (9th ed.) Citation

Higgins, Peter M. Techniques of Semigroup Theory. Oxford Univ. Press, 1992.