APA (7th ed.) Citation

Charosh, M., & Ehlert, L. (1972). Mathematical games for one or two. Crowell.

Chicago Style (17th ed.) Citation

Charosh, Mannis, and Lois Ehlert. Mathematical Games for One or Two. New York: Crowell, 1972.

MLA (9th ed.) Citation

Charosh, Mannis, and Lois Ehlert. Mathematical Games for One or Two. Crowell, 1972.