APA (7th ed.) Citation

Hunt, W. E. (1996). `Heelicopter' : pioneering with Igor Sikorsky : based on a personal account / by William E. Hunt: Pioneering with Igor Sikorsky : based on a personal account. Airlife.

Chicago Style (17th ed.) Citation

Hunt, William E. `Heelicopter' : Pioneering with Igor Sikorsky : Based on a Personal Account / by William E. Hunt: Pioneering with Igor Sikorsky : Based on a Personal Account. Shrewsbury: Airlife, 1996.

MLA (9th ed.) Citation

Hunt, William E. `Heelicopter' : Pioneering with Igor Sikorsky : Based on a Personal Account / by William E. Hunt: Pioneering with Igor Sikorsky : Based on a Personal Account. Airlife, 1996.

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