The contest problem book - Salkind, Charles T. n. 1898; Earl, James Mayberry n. 1896 (Washington : Mathematical Association of America, 1960)
Contenido: v. 2. Annual high school contests 1961-1965. -- v. 3. Annual high school contests 1966-1972.
Keywords: MATEMATICAS -- PROBLEMAS, EJERCICIOS, ETC