Armstrong, William H.  <br/><br/>
Study is hard work /  
William H. Armstrong  
 - 1 ed. 
 - s/l :   Harper and Brothers Publishers,   1956 
 - 167 p 
<br/><br/> The purpose of this book is to help you to study more efficiently 
<br/><br/><label>Subjects--Topical Terms: </label><br/>estudio-su valor
<br/><br/><label>Dewey Class. No.: </label>001 Ar5