Rotman, J. J. (1995). An Introduction to the Theory of Groups (4th ed.). Springer.
Chicago-čujuhus (17. p.)Rotman, Joseph J. An Introduction to the Theory of Groups. 4th ed. New York: Springer, 1995.
MLA-čujuhus (9. p.)Rotman, Joseph J. An Introduction to the Theory of Groups. 4th ed. Springer, 1995.
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