The metal industry in Puerto Rico  major group 33 and 34. 

 - San Juan, P.R.  Economic Development Administration ; Office of Economic Research ; General Ecomonic Division  1986- 
 - 54 [1] p.  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metal trade--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Industries.<br/>Puerto Rico