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The determinants and consequences of population trends : new summary of findings on interaction of demographic, economic and social factors / United Nations, Department of economic and social affairs, Population division.
- United Nations,
- 1973 - 1978.
- New York, NY :
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The Dermaptera of Africa / by A. Brindle.
- 86
- Musée royal de l'Afrique centrale,
- 1973 - 1978.
- Tervuren :