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John C. Machisak

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Books

Injury Experience in the Nonmetal Industries (except Stone and Coal), 1956 and 1957
Injury Experience in the Nonmetal Industries (except Stone and Coal), 1956 and 1957
John C. Machisak, Naomi W. Kearney, Hazel M. Keener
Injury Experience in the Metal Industries, 1956 and 1957
Injury Experience in the Metal Industries, 1956 and 1957
John C. Machisak, Naomi W. Kearney, Elizabeth B. Dixon
The National Safety Competitions of 1948-58
The National Safety Competitions of 1948-58
John C. Machisak, Elizabeth K. Elsner

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