An island grows  70 years of economic development in Puerto Rico 
1877-1947. 
 - San Juan  s.n.  1947. 
 - 56 p.  illus., ports.  31 cm. 
<br/><br/><label>LCCN: </label>47027641  
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Economic conditions.
<br/><br/><label>LC Class. No.: </label>HC147.P8  / L4 
<br/><br/><label>Dewey Class. No.: </label>330.97295