APA (7th ed.) Citation

Cofman, J. (1990). What to solve? : problems and suggestions for young mathematicians / Judita Cofman: Problems and suggestions for young mathematicians. Clarendon.

Chicago Style (17th ed.) Citation

Cofman, Judita. What to Solve? : Problems and Suggestions for Young Mathematicians / Judita Cofman: Problems and Suggestions for Young Mathematicians. Oxford: Clarendon, 1990.

MLA (9th ed.) Citation

Cofman, Judita. What to Solve? : Problems and Suggestions for Young Mathematicians / Judita Cofman: Problems and Suggestions for Young Mathematicians. Clarendon, 1990.

Warning: These citations may not always be 100% accurate.