Young, Roger William. <br/><br/>
Lines of thought :  exercises in reasoned thinking / 
by Roger William Young. 
 - London :  Oxford University Press,  1965. 
 - 140 p. :  ill. ;  19 cm. 
<br/><br/>Bibliographic references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>Dewey Class. No.: </label>160.76  / YOL  1965