Black, John,  1931- <br/><br/>
Essential mathematics for economists / 
[by] J. Black [and] J. F. Bradley. 
 - London,  New York,  J. Wiley  [c1973] 
 - x, 268 p.  illus.  24 cm. 
<br/><br/><label>ISBN: </label>0471077100  0471077135 (pbk.) 
<br/><br/><label>LCCN: </label>73002778  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics, Mathematical.
<br/><br/><label>Dewey Class. No.: </label>330.1543  / BLE 1973