http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
comparison of metropolitan and non-metropolitan employment characteristics
indications of the size of non-metropolitan mobile communication services user class
Office of Space Science and Applications,
1 online resource (105 unnumbered pages) : illustrations.
Title from title screen (viewed on Apr. 30, 2014).
Includes bibliographical references (page [44-45]).
Sponsored by Office of Space Sciences and Applications, National Aeronautics and Space Administration NAS7-918