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ספרים בחינם

How the shortage of skilled mechanics is being overcome by training the unskilled

United States. Council of National Defense. Committee on Labor. Section on Industrial Training for the War Emergency · 2023

ספרייה ציבורית, Project Gutenberg. בלי הרשמה.

World War, 1914-1918 -- Economic aspects -- United StatesTechnical education -- United StatesMechanics (Persons)Unskilled labor -- United States