Commercial geography 
By Balbir singh negi 
 - 1st ed. 
 - Meerut :  Kedar nath Ram nath,  1981. 
 - xi,262p. 
<br/><br/><label>Subjects--Index Terms: </label>Geography & travel Commercial geography 
<br/><br/><label>Dewey Class. No.: </label>910