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William Franklin Willoughby

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Mineral Industries Of Puerto Rico (1904)
The Quarterly Journal Of Economics V16 (1901)
Inspection Of Factories And Workshop (1900)
Territories And Dependencies Of The United States: Their Government And Administration
Inspection Of Factories And Workshop (1900)
Mineral Industries Of Puerto Rico (1904)
Mineral Industries Of Puerto Rico (1904)
Mineral Industries Of Puerto Rico (1904)
The Quarterly Journal Of Economics V16 (1901)
State Activities in Relation to Labor in the United States
Principles of Judicial Administration
The Quarterly Journal Of Economics V16 (1901)
Employment Bureaus (Classic Reprint)
Workingmen's Insurance
The Problem Of A National Budget (1918)

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