Kulathungam,Lyman Christopher Devasuthantharan <br/><br/>
Reduction-ad-Absurdum-Its form and Justification. 

 - Canada,  1973. 
 - ii,iii,127,vi. 
<br/><br/>Thesis 
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<br/><br/><label>Dewey Class. No.: </label>160  / KUL