APA (7th ed.) Citation

Liberty, G., & Kotula, J. (1963). The how and why wonder book of time. Wonder Books.

Chicago Style (17th ed.) Citation

Liberty, Gene, and Jo Kotula. The How and Why Wonder Book of Time. New York: Wonder Books, 1963.

MLA (9th ed.) Citation

Liberty, Gene, and Jo Kotula. The How and Why Wonder Book of Time. Wonder Books, 1963.