Do-It-yourself encyclopedia 

 - New York  ; Theodore Audel And Co.  , 1960 
 - Various pages  , V.2 
<br/><br/><label>ISBN: </label> 145 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motivation<br/>Self Motivation
<br/><br/><label>Dewey Class. No.: </label>153.8  / DO