APA (7th ed.) Citation

Gaal, S. A. (1964). Point set topology. Acad. Pr.

Chicago Style (17th ed.) Citation

Gaal, Steven Alexander. Point Set Topology. New York u.a: Acad. Pr, 1964.

MLA (9th ed.) Citation

Gaal, Steven Alexander. Point Set Topology. Acad. Pr, 1964.

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