1998 assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States / 
by the U.S. Geological Survey National Mineral Resource Assessment Team. 
 - Washington :  Denver, CO :  U.S. G.P.O. ;  Free on application to U.S. Geological Survey, Information Services,  1999. 
 - iv, 21 p. :  ill., map ;  28 cm. +  1 computer optical disc (4 3/4 in.) 
 - U.S. Geological Survey circular ;  1178 .
<br/><br/>Includes bibliographical references. 
<br/><br/><br/>System requirements for accompanying computer disc: Windows 95/98/NT. 
<br/><br/><label>ISBN: </label>0607951117 (pbk.) 
<br/><br/><label>LCCN: </label>99-029062 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--United States.<br/>Ore-deposits--United States.
<br/><br/><label>LC Class. No.: </label>TN23  / .U57 1999 
<br/><br/><label>Dewey Class. No.: </label>553.4/0973