Koo, Delia. <br/><br/>
Elements of optimization  with application in economics and business 
by Delia Koo. 
 - New York  Springer-Verlag  1977 
 - 220p. 
<br/><br/><label>ISBN: </label>0387902635 
<br/><br/><label>Dewey Class. No.: </label>519.4  / N774