Singer, Donald A. <br/><br/>
Mineral deposit density :  an update / 
by Donald A. Singer ... [et al.]. 
 - Reston, Va. :  Denver, CO :  U.S. Dept. of the Interior, U.S. Geological Survey ;  For sale by U.S. Geological Survey, Information Services,  2001. 
 - vi, 13 p. :  ill. ;  28 cm. 
 - U.S. Geological Survey professional paper ;  1640-A Contributions to global mineral resource assessment research .
<br/><br/>Includes bibliographical references (p. 11-13). 
<br/><br/><label>ISBN: </label>0607982527 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ore deposits--United States.<br/>Mines and mineral resources--United States.