APA (7th ed.) Citation

Crosby. (2012). The world encyclopedia of military helicopters. Lorenz Book.

Chicago Style (17th ed.) Citation

Crosby. The World Encyclopedia of Military Helicopters. Leicestershire, U.K: Lorenz Book, 2012.

MLA (8th ed.) Citation

Crosby. The World Encyclopedia of Military Helicopters. Lorenz Book, 2012.