APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.