000
00289nam a22001097a 4500
008
150827b xxu||||| |||| 00| 0 eng d
020
_a
0412135000
082
_a
658.403 3 DUC
100
_a
DUCKWORTH W.E.
245
_a
A GUIDE TO OPERATIONAL RESEARCH
260
_a
LONDON
_b
CHAPMAN AND HALL
_c
1977
999
_c
1445
_d
1445