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441
Soil water balance in the Sudano-Sahelian Zone : summary proceedings of an international workshop..., 18-23 Feb. 1991, Niamey, Niger /
Publicado 1992Procedimiento de la Conferencia Libro
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International Symposium on Water Erosion, Sedimentation and Resource Conservation, October 9-13, 1990, Dehradun, India.
Publicado 1990Procedimiento de la Conferencia Libro -
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Hydrological classification of sub-basins in the Macleay Valley, New South Wales /
Publicado 1985Libro -
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Planning the quality of education : the collection and use of data for informed decision-making /
Publicado 1990Desconocido -
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