APA (7th ed.) Citation

Greenberg, M. J., & Harper, J. R. (1981). Algebraic topology: A first course. Benjamin/Cummings Pub. Co..

Chicago Style (17th ed.) Citation

Greenberg, Marvin J., and John R. Harper. Algebraic Topology: A First Course. Reading, Mass.: Benjamin/Cummings Pub. Co., 1981.

MLA (9th ed.) Citation

Greenberg, Marvin J., and John R. Harper. Algebraic Topology: A First Course. Benjamin/Cummings Pub. Co., 1981.