TY  - BOOK
AU  - Perman,Roger
AU  - Ma,Yue
AU  - McGilvray,James
TI  - Natural Resource and Environmental Economics
SN  - 0582257271
U1  - 333.7/ PEN 
PY  - 1996///
CY  - London, New York
PB  - Longman
KW  -  Economics
N1  - Includes bibliographical references (p. [378]-388) and indexes
ER  -