Nature in focus : rapid ecological assessment / - Washington, D.C. : Island Press, c2000. - xix, 182 p. : ill. (some col.), maps (some col.) ; 28 cm. ISBN: 1559637544 (paper : alk. paper) Subjects--Topical Terms: Ecological surveysBiodiversity conservation. Dewey Class. No.: 577 ISL 2000 A080 Or.