Roy, Bhola Nath. <br/><br/>
Textbook of deductive logic :  with copious examples and questions / 
Bhola Nath Roy. 
 - 34th ed. 
 - Calcutta :  S. C. Sarkar & Sons,  1982. 
 - xii, 368 p. ;   18 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography : p.1 
<br/><br/>338  338 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>Dewey Class. No.: </label>162 / B469t