Puerto Rico  crossroad of the Americas 
by Rafael Picó. 
 - [San Juan, P.R.  1958] 
 - 22 p. 
<br/><br/> Paper delivered during special celebration, Days for Pan-American understanding, University of Massachussetts, Amberst-July 11, 1957. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Civilization.