APA (7th ed.) Citation

Krantz, S. G. (2009). A guide to real variables. Mathematical Association of America.

Chicago Style (17th ed.) Citation

Krantz, Steven G. A Guide to Real Variables. [Washington, D.C.]: Mathematical Association of America, 2009.

MLA (9th ed.) Citation

Krantz, Steven G. A Guide to Real Variables. Mathematical Association of America, 2009.