Rotman, J. J. (1973). The theory of groups: An introduction (2d ed.). Allyn and Bacon.
Cita Chicago (17th ed.)Rotman, Joseph J. The Theory of Groups: An Introduction. 2d ed. Boston: Allyn and Bacon, 1973.
Cita MLA (9th ed.)Rotman, Joseph J. The Theory of Groups: An Introduction. 2d ed. Allyn and Bacon, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.