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Farming systems in relation to increasing population pressure: the case of Eastern Nigeria

by Lagemann, J; Centro Agronómico Tropical de Investigación y Enseñanza, Turrialba (Costa Rica).
Publisher: [sl] : [sf]Description: 36 p. : ; +.Subject(s): EXPLOTACION EN PEQUENA ESCALA | FERTILIDAD DEL SUELO | ECONOMIA | POBLACION HUMANA | NIGERIAOnline Resources: En
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Dat. num. Mapa. 15 ref.

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