Ross, David F. <br/><br/>
The long up hill path  a historical study of Puerto Rico's program of economic development. 

 - San Juan, Puerto Rico  Editorial Edil  1969. 
 - 187 p. 
<br/><br/>Bibliography: p. 183-187. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Economic conditions.