Siemens, Nicolai <br/><br/>
Operations research planning, operations and information systems 
by Nicolai Siemens, C. H. Marting and Frank Greenwood 
 - New York  Free Press  1973 
 - 450p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management information systems<br/>Management<br/>Operations research
<br/><br/><label>Dewey Class. No.: </label>I55 Si15