TY  - BOOK
AU  - Helm, Dieter
TI  - Natural capital: Valuing our planet
SN  - 9780300210989
U1  - 330/HEL  
PY  - 2015///
CY  - New Haven
PB  - Yale Uni Pr
KW  - Natural resources-Valuation
KW  - General economics
KW  - Environmental economics
KW  - Economics
ER  -