Todd, David Keith. Groundwater hydrology / by David Keith Todd and Larry W Mays. - 3rd ed / . - New Delhi : Wiley India , 2011. - xvii,636p. : ills.,figs.,tables ; 28cm . Includes bibliographical references and index ISBN: 9788126530038 RS995.00 Subjects--Index Terms: GROUNDWATER Dewey Class. No.: 551.49 / TOD/G