Gilbert, Doris Wilcox <br/><br/>
Study in depth 

 - Englewood  ; Prentice Hall  , 1966 
 - xvi,207p. 
<br/><br/><label>ISBN: </label> 29.62 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370  / GIL