APA Edition Citation

Gray, B. (1975). Homotopy theory: An introduction to algebraic topology.

Chicago Edition Citation

Gray, Brayton. Homotopy Theory: An Introduction to Algebraic Topology. Academic Press, New York, 1975.

MLA Edition Citation

Gray, Brayton. Homotopy Theory: An Introduction to Algebraic Topology. 1975.

Warning: These citations may not always be 100% accurate.