APA (7th ed.) Citation

O'Connor, W. E. (1985). An introduction to airline economics (3rd ed.). Praeger.

Chicago Style (17th ed.) Citation

O'Connor, William E. An Introduction to Airline Economics. 3rd ed. New York: Praeger, 1985.

MLA (9th ed.) Citation

O'Connor, William E. An Introduction to Airline Economics. 3rd ed. Praeger, 1985.