18 books
Directory of Ohio Coal Operators for the Year 1918 (Classic Reprint)
Union Scale of Wages and Hours of Labor in Ohio on May 15, 1920 (Classic Reprint)
Union Scale of Wages and Hours of Labor in Ohio on May 15, 1919 (Classic Reprint)
Rates of Wages, Hours of Labor, and Fluctuation of Employment in Ohio in 1914 (Classic Reprint)
Preliminary Survey of Labor Camps in Ohio (Classic Reprint)
Ohio State Workmen's Compensation Insurance Fund Manual Volume 7
Bulletin Volume 2, No. 4
Ohio State Workmen's Compensation Insurance Fund Manual. Premium Rules and Rates
Ohio State Workmen's Compensation Insurance Fund Manual; Premium Rules and Rates ... Financial Statement ... Volume 2
Bulletin Volume 2, No. 5
Safety Bulletin of the Industrial Commission of Ohio
Bulletin Volume 5, Nos. 2-5
Bulletin Volume 4, No. 13
Bulletin Volume 3, No. 2
Ohio State Workmen's Compensation Insurance Fund Manual Volume 4; Premium Rules and Rates ... Financial Statement ...
Bulletin Volume 5, No. 1
Ohio State Workmen's Compensation Insurance Fund Manual Volume 3; Premium Rules and Rates
Statistics of Mines and Quarries in Ohio