Tohutoro APA (7th ed.)

Gaal, S. A. (1964). Point set topology. Academic Press.

Tohutoru Kātū Chicago (17th ed.)

Gaal, Steven A. Point Set Topology. Nueva York: Academic Press, 1964.

Tohutoro MLA (9th ed.)

Gaal, Steven A. Point Set Topology. Academic Press, 1964.