Roy, Bhola Nath . <br/><br/>
Textbook of Deductive Logic /  Textual Documents 
Bhola Nath Roy. 
 - 20th ed / 
 - Calcutta :  S. C. Sarkar & Sons ,  1958. 
 - 368p ;  20 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Philosophy T/G-Philosophy 
<br/><br/><label>Dewey Class. No.: </label>162  / R 812 T