TY  - BOOK
AU  - Griliches Z
AU  -  Ringstad V
TI  - Economics of scale and the form of the productionfunction :  An econometric study of norwegian manufacturing establishment data   
T2  - Contributions to economics analysis
SN  - 0 7204 3172 7
U1  - X9:2:(B).571.N6, L1/TD3 
PY  - 1971///
CY  - London
PB  - NortHolland publishing UK        
KW  - Production
ER  -