Weizsacker Von <br/><br/>
Lecture notes in poerations research and mathematical systems 

 - New York  Springer Verlag USA      1971 
<br/><br/><label>Standard No.: </label>247,791 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X:(B28), L1