Mathematical Association of America, Salkind, C. T., & Earl, J. M. (1973). The contest problem book III: Annual high school [examinations] contests, 1966-1972. Mathematical Association of America.
Chicago Style (17th ed.) CitationMathematical Association of America, Charles T. Salkind, and James M. Earl. The Contest Problem Book III: Annual High School [examinations] Contests, 1966-1972. Washington: Mathematical Association of America, 1973.
MLA (9th ed.) CitationMathematical Association of America, et al. The Contest Problem Book III: Annual High School [examinations] Contests, 1966-1972. Mathematical Association of America, 1973.
Warning: These citations may not always be 100% accurate.