Gillman, Rick, editor. “Index by Problem Type.” A Friendly Mathematics Competition: 35 Years of Teamwork in Indiana, 1st ed., Mathematical Association of America, 2003, pp. 181–185, www.jstor.org/stable/10.4169/j.ctt7zsxz3.8. Accessed 4 Aug. 2021.
Index by Problem Type. (2003). In Gillman R. (Ed.), A Friendly Mathematics Competition: 35 Years of Teamwork in Indiana (pp. 181-185). Mathematical Association of America. Retrieved August 4, 2021, from http://www.jstor.org/stable/10.4169/j.ctt7zsxz3.8
"Index by Problem Type." In A Friendly Mathematics Competition: 35 Years of Teamwork in Indiana, edited by Gillman Rick, 181-85. Mathematical Association of America, 2003. Accessed August 4, 2021. http://www.jstor.org/stable/10.4169/j.ctt7zsxz3.8.
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