631.4794
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Colwell, J. D.
National soil fertility project / J. D. Colwell.
— Adelaide : CSIRO Division of Soils in collaboration with state departments of agriculture and the fertilizer industry, 1977- v. <1, 2> : il. ; 25 cm.
La biblioteca posee: v. 1.
Contenido: v. 1. Objectives and procedures. — v. 2. Soil fertility relationships.
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