APA引文

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

Chicago Edition Citation

Higgins, Peter M. Techniques of Semigroup Theory. Oxford [England] ; New York: Oxford University Press, 1992.

MLA引文

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

警告：這些引文格式不一定是100％准確.