Παρόμοια τεκμήρια

• Family and fertility in Puerto Rico : a study of the lower income group /
  ανά: Stycos, J. Mayone
  Έκδοση: (1955)
• Human fertility and population problems : proceedings of the Seminar Sponsored by the American Academy of Arts and Sciences with the support of the Ford Foundation /
  Έκδοση: (1963)
• A compilation of age-specific fertility rates for developing countires /.
  Έκδοση: (1979)
• Information sources on the fertilizer industry /
  Έκδοση: (1976)
• Studies on fertility and social mobility /
  Έκδοση: (1964)