APA (7th ed.) Citation

Lengel, R. (2017). Everything explained for the professional pilot: Excruciatingly detailed plain english explanation of everything essential for every pilot (12° edición.). Aviation-Press.

Chicago Style (17th ed.) Citation

Lengel, Richie. Everything Explained for the Professional Pilot: Excruciatingly Detailed Plain English Explanation of Everything Essential for Every Pilot. 12° edición. Estados Unidos: Aviation-Press, 2017.

MLA (9th ed.) Citation

Lengel, Richie. Everything Explained for the Professional Pilot: Excruciatingly Detailed Plain English Explanation of Everything Essential for Every Pilot. 12° edición. Aviation-Press, 2017.