TY  - BOOK
AU  - Churchman,C.West
AU  - Ackoff,Russell L.
AU  -  Arnoff,E.Leonard
TI  - Introduction to operations research / 
U1  - 033 
PY  - 1989///
CY  - New Delhi : 
PB  - Prentice Hall , 
KW  - OPAERATION RESEARCH
N1  - Includes bibliography and index
ER  -