Gaya APA

Holt, M, J., Poynor, P, J. (2016). Air carrier operations (Ed. 2). Washington:  Aviation Supplies & Academics Inc.

Gaya MLA

Holt, Mark, J.., Poynor, Philip, J.. "Air carrier operations". Ed. 2 Washington:  Aviation Supplies & Academics Inc, 2016. Text.