APA (7th ed.) Citation

Harris, S., & Smart, E. (1979). Helicopters. F. Watts.

Chicago Style (17th ed.) Citation

Harris, Susan, and E. Smart. Helicopters. New York: F. Watts, 1979.

MLA (9th ed.) Citation

Harris, Susan, and E. Smart. Helicopters. F. Watts, 1979.

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