Zangwill, Willard L. <br/><br/>
Nonlinear programming  a unified approach 

 - London  Prentice-Hall  1969 
 - xii, 356p 
<br/><br/><label>Subjects--Index Terms: </label>Non linear programming problem 
<br/><br/><label>Dewey Class. No.: </label>519.76  / ZAN