Cox, Dennis P. <br/><br/>
Geology of the Tanamá and Helecho porphyry copper deposits and vicinity, Puerto Rico 
by Dennis P. Cox. 
 - Washington  U.S. G.P.O.  1985. 
 - iv, 59 p.  ill.  29 cm. 
 - U.S. Geological Survey professional paper  1327 .
<br/><br/> One map on folded leaf in pocket. 
<br/><br/>Bibliography: p. 58-59. 
<br/><br/><label>ISBN: </label> 3.00 
<br/><br/><label>Source: </label>024-001-03535-9  GPO 
<br/><br/><label>LCCN: </label>84600077 //r88 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Porphyry--Puerto Rico--Tanamá Region.<br/>Copper ores--Puerto Rico--Tanamá Region.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico
<br/><br/><label>LC Class. No.: </label>QE462.P6  / C69 1985 
<br/><br/><label>Dewey Class. No.: </label>553.4/3/0972953 
<br/><br/><label>GPO Item No.: </label>624 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:1327