Salmon, Merrilee H..
Introduction to logic and critical thinking /
Merrilee H. Salmon 
. - 3rd edition 
. - Fort Worth : Harcourt Brace College Publishers,  1995 
. - xvii, 471 p.  tab.  24 cm. 
<br/>К.: Бібліогр. : c. 402-405,  Index 
<br/><label>  ISBN: </label>0-15-543064-5