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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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Proceedings of a Joint Work Conference on Provenance and Genetic Improvement Strategies in Tropical Forest Trees held in Mutare, Zimbabwe, 9-14 April, 1984 by IUFRO working parties...
Publicado 1984Procedimiento de la Conferencia Libro -
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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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A data management program package for automatically recorded water level data /
Publicado 1990Libro -
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