Das, Ghanshyam Hydrology and Soil Conservation Engineering including Watershed Management Ghanshyam Das - 2 nd ed. - New Delhi : PHI Learning Private Limited 2009 - xii, 539p. : ill . ; 23 cm ISBN: 9788120335868 Subjects--Topical Terms: Hydrology and Soil Conservation Dewey Class. No.: 551.48 DAS