30th Annual National V/STOL Forum proceedings, Washington, D.C., May 1974
Annual National V/STOL Forum of the American Helicopter Society ; 30 ; 1974 ; Washington, DC Annual National V/STOL Forum of the American Helicopter Society ; 30 (Washington, DC) : 1974.05.
1974
Getr. Zählung
Ill., graph. Darst
Konferenzband
Englisch