APA (7th ed.) Citation

Pontryagin, L. S. (1986). Algebraic and differential topology. Gordon and Breach Science Publishers.

Chicago Style (17th ed.) Citation

Pontryagin, Lev Semenovich. Algebraic and Differential Topology. New York: Gordon and Breach Science Publishers, 1986.

MLA (9th ed.) Citation

Pontryagin, Lev Semenovich. Algebraic and Differential Topology. Gordon and Breach Science Publishers, 1986.

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