Grant, William E. Ecology and natural resource management : systems analysis and simulation / William E. Grant, Ellen K. Pedersen and Sandra L. MarĂn - New York : John Wiley, c1997. - xvii, 373 p. : ill. ; 24 cm. ISBN: 9780471137863 LCCN: Subjects--Topical Terms: EcologyComputer simulationNatural resources LC Class. No.: QH541.15 / .S5G73 1997