by New York (State). Legislature

1920

by New York (State). Department of Labor. Bureau of Statistics and Information

1921

by New York (State). Department of Labor

1921

by Municipal Reference and Research Center (New York, N.Y.)

1919

by New York Public Library. Municipal Reference Library

1928

by New York Chamber of Commerce

1929

by New York (State). Legislature. Senate

1918

by New York (State)

1918

by New York (State). Division of Industrial Hygiene

1924

by New York (State). Legislature

1921

by General Society of Mechanics and Tradesmen of the City of New York

1926

by General Society of Mechanics and Tradesmen of the City of New York

1924