1. Theories of the production of males and females Author(s): Hubbard, Silas. Publication: [Buffalo? : s.n., 1855?] Subject(s): ReproductionSex Distribution
2. Latin American population growth, 1950-2010 Publication: [Arlington, Va.] : International Science and Technology Institute, [198-] Subject(s): Population GrowthAge DistributionSex DistributionLatin America
