@inbook {503, title = {An information systems approach to the preservation of biological diversity}, booktitle = {GIS Applications in Natural Resources}, year = {1991}, pages = {283-293}, publisher = {GIS World, Inc.}, organization = {GIS World, Inc.}, address = {Ft. Collins, Colorado}, author = {Scott, J. M. and Estes, J. E. and Scepan, J. and Davis, F. W. and Stoms, D. M.}, editor = {Heit, M. and Shortreid, A.} }