United States. Congress. Senate. Committee on Patents
United States. Congress. Senate. Committee on Privileges and Elections
United States. Bureau of the Census
United States. Congress. Senate. Committee on Education and Labor.
United States. Congress. Senate. Committee to Audit and Control the Contingent Expenses
United States. Bureau of Labor Statistics.
Bertha Haven Putnam
Davies, David
Gigi M. Berardi
Unknown Author
B. Seebohm Rowntree
India. Labour Bureau
Reginald Vivian Lennard
Sunil Kanwar
Dianne Hubbard
Louis J. Ducoff
United States. Wage and Hour and Public Contracts Divisions.