World population prospects as assessed in 1968.

類似資料

• World population prospects as assessed in 1963.
  出版事項: (1966)
• Patterns of urban and rural population growth.
  出版事項: (1980)
• World population prospects : estimates and projections as assessed in 1982 /
  出版事項: (1985)
• World population growth prospects /
  著者:: Frejka, Tomas
  出版事項: (1981)
• Interim report on conditions and trends of fertility in the world, 1960-1965.
  出版事項: (1972)