Property Factor  

 - Dhaka:   Shadow Communication,   2017.  
 - 46 p.  illus.  28cm. 
 - Vol. 01  Issue 2 May 2017 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patents--Periodicals
<br/><br/><label>Dewey Class. No.: </label>658.57