APA (7 वां संस्करण) प्रशस्ति पत्र

Davidoff, P. (1987). Air fares and ticketing (Rev. and expanded ed.). National Publishers.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Davidoff, Philip. Air Fares and Ticketing. Rev. and expanded ed. Elmsford, N.Y: National Publishers, 1987.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Davidoff, Philip. Air Fares and Ticketing. Rev. and expanded ed. National Publishers, 1987.