APA (7th ed.) Citation

lh & Everett-Heath. Military helicopters.

Chicago Style (17th ed.) Citation

lh and Everett-Heath. Military Helicopters. LondonlbUnited Kingdomlc1990.

MLA (9th ed.) Citation

lh and Everett-Heath. Military Helicopters.

Warning: These citations may not always be 100% accurate.