TY  - BOOK
AU  - Perman Roger...[et.al.]
TI  - Natural resource and environmental economics
SN  - 978-0-321-41753-4
U1  - 333.7 23rd ed.
PY  - 2011///
CY  - Harlow, England
PB  - Pearson Education Ltd., 
N1  - Part 1- Foundations
Part 2- Environmental pollution
Part 3- Project appraisal
Part 4- Natural resource exploitation

ER  -