Bellman, Richard E. <br/><br/>
Methods in approximation   techniques for mathematical modelling 
Richard E. Bellman 
 - Holland  D.Reidel  1986 
 - xv,224p. 
 - Mathematics and its applications .
<br/><br/><label>ISBN: </label>9027721882 
<br/><br/><label>Dewey Class. No.: </label>511.4 B417M