APA (7th ed.) Citation

Balfour, A. (1966). An Introduction to sets, groups, and matrices (2nd ed.). Heineman.

Chicago Style (17th ed.) Citation

Balfour, A. An Introduction to Sets, Groups, and Matrices. 2nd ed. London: Heineman, 1966.

MLA (9th ed.) Citation

Balfour, A. An Introduction to Sets, Groups, and Matrices. 2nd ed. Heineman, 1966.