MATHEMATICAL GAMES.

MLA

Gardner, Martin. “Mathematical Games.” Scientific American, vol. 216, no. 3, Mar. 1967, pp. 124–27. EBSCOhost, https://doi.org/10.1038/scientificamerican0367-124.

APA

Gardner, M. (1967). Mathematical Games. Scientific American, 216(3), 124–127. https://doi.org/10.1038/scientificamerican0367-124

Chicago

Gardner, Martin. 1967. “Mathematical Games.” Scientific American 216 (3): 124–27. doi:10.1038/scientificamerican0367-124.