Kumar, K. <br/><br/>
Identification of Disputed Documents, Fingerprints and Ballistics /  
Revised by K. Kumar. 
 - 4th ed. /  
 - Lucknow :   Eastern Book Company ,   1990 
 - 314p :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Writing Equipments
<br/><br/><label>Dewey Class. No.: </label>Y72  / N0