RichardsonsHarry W <br/><br/>
Elements of regional economics / 
Harry W. Richardson . 
 - Harmondsworth ,  Penguin Books .  1969 : 
 - 166 p. ;  18 cm. 
<br/><br/><label>ISBN: </label>140801383 
<br/><br/><label>LC Class. No.: </label>HD82 
<br/><br/><label>Dewey Class. No.: </label>338.9