BECKMANN M <br/><br/>
Lecture notes in economics and mathematical systems 

 - Berlin  Springer-Verlag            1974 
 - 243p  cm. 
<br/><br/><label>ISBN: </label>354007015X 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:(B3), 122L4