Castillon, David A. Conservation of natural resources : a resource management approach / David A. Castillon. - 2nd ed. - Madison, Wis. : Brown and Bench Mark, c1996. - xiv, 470 p. : ill. ; 27 cm. Glossary : p. 451 - 457. Includes bibliographical references and index. ISBN: 0697157822 Subjects--Topical Terms: Conservation of natural resources LC Class. No.: S944.5 / N38C27 1996