APA (7th ed.) Citation

Keyes & Key. (1979). How to develop your thinking ability. McGraw-Hill.

Chicago Style (17th ed.) Citation

Keyes and Key. How to Develop Your Thinking Ability. New York: McGraw-Hill, 1979.

MLA (8th ed.) Citation

Keyes and Key. How to Develop Your Thinking Ability. McGraw-Hill, 1979.