TY  - BOOK
AU  - Simmons,D.M
TI  - Nonlinear programming for operations research
T2  - Prentice-hall international series in management
SN  - 013623397x
U1  - 15.01 
PY  - 1975///
CY  - Englewood Cliffs
PB  - Prentice-Hall
ER  -