Salkind, C. T. (1961). The contest problem book. Mathematical Association of America.
Citación estilo ChicagoSalkind, Charles T. The Contest Problem Book. Washington, D.C.: Mathematical Association of America, 1961.
Cita MLASalkind, Charles T. The Contest Problem Book. Mathematical Association of America, 1961.
Warning: These citations may not always be 100% accurate.