Clarke, Paul F. <br/><br/>
A guide to obtaining information from the USGS, 1978 / 
compiled by Paul F. Clarke, Helen F. Hodgson and Gary W. North 
 - Washington, D. C. :  U.S. Dept. of the Interior, Geological Survey,  1978 
 - 36 p. ;  26 cm. 
 - Geological Survey circular ;  777 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Information Services--United States<br/>Hydrology--Information services--United States<br/>Mines and mineral resources--Information services--United States
<br/><br/><label>Dewey Class. No.: </label>557.308