The history and development of the Helena School of Aeronautics and Related Trades, 1931-1964

Sindelar, Robert Stephen2016-11-232016-11-231964https://scholarworks.montana.edu/handle/1/11008enHelena Vocational-Technical CenterTechnical educationHistoryAeronauticsThe history and development of the Helena School of Aeronautics and Related Trades, 1931-1964Professional PaperCopyright 1964 by Robert Stephen Sindelar