APA (7th ed.) Citation

Underdown, R. B., & Palmer, T. (2001). Ground studies for pilots (6th ed.). Blackwell Science.

Chicago Style (17th ed.) Citation

Underdown, R. B., and Tony Palmer. Ground Studies for Pilots. 6th ed. Oxford [England] ; Malden, MA: Blackwell Science, 2001.

MLA (9th ed.) Citation

Underdown, R. B., and Tony Palmer. Ground Studies for Pilots. 6th ed. Blackwell Science, 2001.