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  1. 40203461820
    Author(s):Rosario, J. C.
    Title:Overpopulation in Puerto Rico.
    Subject(s):Birth-Rate by countries
    Journal Title Abbreviation:Birth Control
    Date of Publication:1930–31
    Pagination:14: 40–2.
    Language:Portuguese
    Type of Resource:Analytic
    Series/Volume/Page:Series 4/Volume 2/Page 346