APA (7th ed.) Citation
Salkind, C. T., & Earl, J. M. (1973). The contest problem book. Mathematical Association of America.
Chicago Style (17th ed.) Citation
Salkind, Charles T., and James M. Earl. The Contest Problem Book. Washington, D.C.: Mathematical Association of America, 1973.
MLA (9th ed.) Citation
Salkind, Charles T., and James M. Earl. The Contest Problem Book. Mathematical Association of America, 1973.
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