Van Kooten, G. C. The economics of nature : managing biological assets / G. Cornelis van Kooten, Erwin H. Bulte. - Malden, Mass. : Blackwell Publishers, 2000. - xviii, 512 p. : ill. ; Includes bibliographical references (p. [469]-500). ISBN: 0631218947 (hardbound : alk. paper) 0631218955 (pbk. : alk. paper) Subjects--Topical Terms: Nature conservationSustainable development. Dewey Class. No.: 333.95 / COR