Schwartz, Melvin <br/><br/>
Exploring a changing world / 
Melvin Schwartz, John O'Connor. 
 - New Jersey :  Globe Book,  1993. 
 - 626 p.;  ill.; maps;  26 cm. 
 - 911.3:33 (NLA) .
<br/><br/><label>ISBN: </label>0835904792 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic geography
<br/><br/><label>Universal Decimal Class. No.: </label>911.3:33 (NLA)