TY  - BOOK
AU  - Isard Walter
AU  -  Langford Thomas W
TI  - Regional input-output study :  Recollections reflec   
T2  - Regional Science Studies Series
U1  - X:89P:(B).73.12P.N7, L1 
PY  - 1971///
CY  - Cambridge
PB  - M I T Press       
KW  - Production Engeeniring
ER  -