Dirigiendo al niño. 

 - San Juan, P. R.  1938. 
 - 318 p.  ill. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child development<br/>Child
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Child.