TY  - BOOK
AU  - Berndt,Ernst R
AU  - Field,Barry C.
TI  - Modeling and measuring natural resource substitution
SN  - 0262060787
PY  - 1981///
CY  - London
PB  - The mit press
KW  - BI-BuBU
KW  - Ressource naturelle.Economie
N1  - Bibliogr,index
ER  -