APA

Stewart I., . (1989). Game, set, and math: enigmas and conundrums. New York: B. Blackwell.

Chicago

Stewart Ian, . 1989. Game, set, and math: enigmas and conundrums. New York: B. Blackwell.

Harvard

Stewart I., . (1989). Game, set, and math: enigmas and conundrums. New York: B. Blackwell.

MLA

Stewart Ian, . Game, set, and math: enigmas and conundrums. New York: B. Blackwell. 1989.