Digital libraries - Congresses. - United States

Economics of digital information : = collection, storage and delivery / by: (Language materials, printed)

Distributed geolibraries = spatial information resources : summary of a workshop/ by: (Electronic resources)

Serving the needs of pre-college science and mathematics education = impact of a digital national library on teacher education and practice : proceedings from a National Research Council workshop/ by: (Electronic resources)

Geographic information systems- United States

Digital libraries- Congresses.- United States

Libraries- Special collections- United States

Scientific libraries- United States

Distributed databases- United States