National Research Council (U.S.). Panel on Distributed Geolibraries. (1999). Distributed geolibraries: Spatial information resources : summary of a workshop. National Academy Press.

National Research Council (U.S.). Panel on Distributed Geolibraries. Distributed Geolibraries: Spatial Information Resources : Summary of a Workshop. Washington, D.C.: National Academy Press, 1999.

National Research Council (U.S.). Panel on Distributed Geolibraries. Distributed Geolibraries: Spatial Information Resources : Summary of a Workshop. National Academy Press, 1999.