Cita APA

Pontryagin, L. S. (1952). Foundations of combinatorial topology. Graylock Press.

Citación estilo Chicago

Pontryagin, L. S. Foundations of Combinatorial Topology. Rochester, N.Y: Graylock Press, 1952.

Cita MLA

Pontryagin, L. S. Foundations of Combinatorial Topology. Graylock Press, 1952.

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