Cita APA (7a ed.)
Higgins, P. M. (1992). Techniques of semigruop theory (1.ed.). Oxford University Press.
Cita Chicago Style (17a ed.)
Higgins, Peter M. Techniques of Semigruop Theory. 1.ed. Oxford: Oxford University Press, 1992.
Cita MLA (9a ed.)
Higgins, Peter M. Techniques of Semigruop Theory. 1.ed. Oxford University Press, 1992.
Precaución: Estas citas no son 100% exactas.