Proceedings, 34th annual national forum - American Helicopter Society : May 15 - 17, 1978, Washington, D.C.
Annual national forum. American Helicopter Society ; 34 ; 1978 ; Washington, DC Annual national forum. American Helicopter Society ; 34 (Washington, DC) : 1978.05.15-17
1978
Getr. Zählung
Ill., graph. Darst
Conference Proceedings
English