Candelas de Cruz, Aida S. <br/><br/>
English as a second language in Puerto Rico; linguistic principles underlying the experiment in the teaching of English as a second language in Puerto Rico  designed for elementary school teachers 
by Aida S. Candelas de Cruz. 
 - [Río Piedras, P.R.]  College of Education, University of Puerto Rico  1954. 
 - xii, 121 p.  illus. 
<br/><br/>Bibliography : p. 111-121. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching (Elementary)
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico