Author
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United States. Bureau of Labor Statistics
1
University of Pennsylvania. Botanical Laboratory
1
University of Pennsylvania. Population Studies Center
1
University of Toronto
1
University of Virginia Library Manuscripts Division
1
University of Virginia. Bibliographical Society
1
Wallace, W. Stewart 1884-1970
1
Winterich, John T., 1891-1970
1
Wozniak, Albion
1