Young, R.W. <br/><br/>
Lines of thought :  exercises in reasoned thinking / 
by R.W.Young. 
 - London :  Oxford University Press,  1958. 
 - 140 p. ;  19 cm. 
<br/><br/>References : p. 138-140 
<br/><br/><label>ISBN: </label>0199110298 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic