Black, J. <br/><br/>
Essential mathematics for economists / 
J. Black, J. F. Bradley. 
 - London :  J. Wiley,  c1973. 
 - x, 268 p.  illus.  24 cm. 
<br/><br/><label>ISBN: </label>0471077135 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics, Mathematical.