TY  - BOOK
AU  - Mwasele, S. L.
TI  - OBS 205: Quantitative methods (operation research ) 
SN  - 9987000592
U1  - 300.072 22
PY  - 1997///
CY  - Dar es salaam
PB  - The open university of Tanzania
N1  - includes bibliographical reference
ER  -