The interior of the earth
Subtitle: an elementary description
By: by Eugene C. Robertson
Contributors: Geological Survey (U.S.)
Series: Geological Survey circular -- 532; Geological Survey circular -- 532.
Publisher: Department of the Interior, U.S. Geological Survey; Distribution Branch, Text Products Section, U.S. Geological Survey
Published: 1966
Place of publication: Washington; Alexandria, VA
Language: eng
Number of pages: 10
Subjects: Internal structure; Surface
Notes: Includes bibliographical references (p. 10).

Also available via Internet from the USGS web site. Address as of 8/08/07: http://pubs.er.usgs.gov/usgspubs/cir/cir532; current access via PURL.