TY - BOOK AU - Cushman,Frank AU - Klinefelter,Cyril Faivre TI - Vocational training for airplane mechanics and aircraft engine mechanics: tentative partial analyses of the trades with suggestions relative to the organization and operation of training courses AV - LC1045 .A25 no. 142 PY - 1930///] CY - [Washington PB - U.S. Govt. print. off. KW - Mechanics (Persons) KW - Airplanes N1 - With : Granite cutting / George Albert McGarvey. Washington : Govt. Print. Off., 1929. Bound together subsequent to publication ER -