Kohnke, Helmut. Soil science simplified / by Helmut Kohnke and D.P. Franzmeier - 4th ed. - New Delhi: Scientific International Pvt. Ltd. , 2013. - x, 162p. ISBN: 9789381714256 Subjects--Topical Terms: AgricultureChemical propertiesSoil and waterSoil formation Dewey Class. No.: 631.4 / KOH/S