APA (7th ed.) Citation

Hodnett, E. (1955). The art of problem solving: How to improve your methods. Harper & Row.

Chicago Style (17th ed.) Citation

Hodnett, Edward. The Art of Problem Solving: How to Improve Your Methods. New York: Harper & Row, 1955.

MLA (9th ed.) Citation

Hodnett, Edward. The Art of Problem Solving: How to Improve Your Methods. Harper & Row, 1955.