TY  - BOOK
AU  - O connor Robert.
TI  - Input -Output Analysis and its Aprications
SN  - 0 85264 235 0
U1  - 339.23 
PY  - 1975///
CY  - London 
PB  - Charles Griffin and compuny ltd.
KW  - Analysis and its Aplication
N1  - Include index
ER  -