00819nam a2200241 4500 1/9077 960529s1973 enk 001 0eng d 9399 DLC GR-PeUP 658.403'4 SI Siemens, Nikolai. Operations research : Planning,operating,and Information systems / Nicolai Siemens, C.H.Marting, Frank Greenwood. New York : The Free press, c1973. x,450 p. : fig.,tabl. ; 23 cm. Includes index. Operations research. Planning systems. Operating systems. Management information systems. Decision making. Marting, C.H. Greenwood, Frank. INST UNIPILB MAIN 20040709 658.403'4 SI 00109682 00109682 LOAN 0 1