TY  - BOOK
AU  - Kneese,Allen V., Ayres, Robert U.
AU  - x
TI  - Economics and the environment, a materials . . . : x
SN  - x  
U1  - 338/KNE  
PY  - 1975///
CY  - Washington 
PB  - Resources for the future 
KW  - Economics
ER  -