APA (7th ed.) Citation

Salkind, C. T. (1961). The contest problem book. Mathematical Association of America.

Chicago Style (17th ed.) Citation

Salkind, Charles T. The Contest Problem Book. Washington, D.C.: Mathematical Association of America, 1961.

MLA (9th ed.) Citation

Salkind, Charles T. The Contest Problem Book. Mathematical Association of America, 1961.