Images of the U.S. Geological Survey, 1879-1979
By: E.L. Yochelson and C.M. Nelson.
Contributors: Nelson, C. M.
Publisher: Geological Survey
Published: 1979
Place of publication: Denver
Language: eng
Subjects: United States. -- Geological Survey.
Notes: 'This collection of photographs reflects 100 years...U.S. Geological  Survey.