APA (7th ed.) Zitazioa

Watkinson, J. (2004). Art of the helicopter. Elsevier Butterworth-Heinemann.

Chicago Style (17th ed.) Zitazioa

Watkinson, John. Art of the Helicopter. Oxford ; Burlington, MA: Elsevier Butterworth-Heinemann, 2004.

MLA (9th ed.) Zitazioa

Watkinson, John. Art of the Helicopter. Elsevier Butterworth-Heinemann, 2004.