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In-service training for soil and water conservation : report of the Workshop in Serdang, Malaysia, 11-15 December, 1989.
Publicado 1989Materias:Procedimiento de la Conferencia Libro -
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Farmers' practices and soil and water conservation programs /
Publicado 1991Materias:Procedimiento de la Conferencia Libro -
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Shade and color with water-conserving plants /
Publicado 1992Materias: “…Landscape gardening Water conservation Southwest, New.…”
Libro -
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