TY  - GEN
AU  - Conrad, Jon M.
AU  - Clark, Colin W.
TI  - Natural resource economics: nates and problems
SN  - 0521337690
U1  - 333.7 
PY  - 1987///
CY  - NewYork
PB  - Cambridge University press
KW  - Natural resources
KW  - Environmental policy
ER  -