Lemmon, E. J..
Beginning logic /
E.J. Lemmon 
. - London : Nelson,  1971 
. - x, 225 p.  21 cm. 
 - (Nelson University Paperbacks )
<br/>К.: Бібліогр. : c. 211-213, Index 
<br/><label>  ISBN: </label>0-17-170010-4