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1Publicado 1969New Delhi, International Commission on Irrigation and Drainage [1969]vii, 27, 202 p. map. 26 cm.Materias: “...Irrigation engineering Data processing Congresses....”
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2Publicado 1975New Delhi : International Commission on Irrigation and Drainage, [1975?]xi, 25, 165 p., [6] leaves of plates : ill. ; 25 cm.Materias: “...Irrigation engineering Data processing Congresses....”