APA (7th ed.) Zitazioa

O'Connor, W. E. (1978). An introduction to airline economics. Praeger.

Chicago Style (17th ed.) Zitazioa

O'Connor, William E. An Introduction to Airline Economics. Nueva York: Praeger, 1978.

MLA (9th ed.) Zitazioa

O'Connor, William E. An Introduction to Airline Economics. Praeger, 1978.