APA (7th ed.) Citation

Smoot, G., & Davidson, K. (1993). Wrinkles in time. Morrow.

Chicago Style (17th ed.) Citation

Smoot, George, and Keay Davidson. Wrinkles in Time. New York: Morrow, 1993.

MLA (9th ed.) Citation

Smoot, George, and Keay Davidson. Wrinkles in Time. Morrow, 1993.

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