Mineral Resources of Puerto Rico   a mew [sic] Island-Wide Assessment, June 23-25,1992: a public meeting on mineral resource assessment. 

 - Washington   1992 
 - 1 v. 
<br/><br/><label>Subjects--Geographic Terms: </label>--Puerto Rico
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.2:M 66/12