Foley, Duncan. Investigations in environmental geology / Duncan Foley, Garry D. McKenzie, Russell O. Utgard. - 2nd ed. - Upper Saddle River, N.J. : Prentice Hall, 1999. - ix, 303 p. : ill. (some col.), maps (some col.) ; 28 cm. Includes bibliographical references. ISBN: 0138570795 (pbk.) LCCN: 98040469 Subjects--Topical Terms: Environmental geology. LC Class. No.: QE38 / .F66 1999 Dewey Class. No.: 550