Younger, Paul L. Groundwater in the environment an introduction / [Book] : Paul L. Younger. - Malden, MA ; Oxford : Blackwell Pub., c2007. - xii, 318 p. : ill. ; 25 cm. All. ISBN: 9781405121439 (pbk. : alk. paper) 1405121432 (pbk. : alk. paper) Subjects--Topical Terms: Groundwater. Dewey Class. No.: 551.49