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Ph. Ragan (Visual Statistics, Isotype), 1934: Pennsylvania in the Depression $145.00 USD Sold on: 2014-Jan-22 Marketplace: eBay ![]() 1 Treasure 0 Trash ![]() 100%one of the earliest American Visual Statistics / Isotype publications Philip E. Ragan Sociographics, Philadelphia (Isotype / Visual Statistics) PENNSYLVANIA LABOR AND INDUSTRY IN THE DEPRESSION A Revi... ![]() More Relevance Historical Items
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