Geology and Earth Sciences

Document Delivery Specialists - Geology and Earth Sciences

API EnCompass
http://www.lhl.lib.mo.us/
pubserv/API/encompas.htm

Access/Information
http://www.access-information.com/

GeoRef (American Geological Institute)
http://www.agiweb.org/georef/dds.html

Information Resources Services (IRS)
http://www.librarianoncall.com/