Παραπομπή APA

Federic, J. H. (1961). Commercial air transportation/5e (5th ed.). Richard D Irwin.

Παραπομπή Chicago Style

Federic, John H. Commercial Air Transportation/5e. 5th ed. Illinois: Richard D Irwin, 1961.

Παραπομπή MLA

Federic, John H. Commercial Air Transportation/5e. 5th ed. Richard D Irwin, 1961.