TY  - BOOK
AU  - Robert Costanza
AU  - Sven Erik Jorgensen
TI  - Understanding and solving environmental problems in the 21st century :  : toward a new, integrated hard problem science
SN  - 0080441114
AV  - GE1.E26 
PY  - 2002///
CY  - Amsterdam 	
PB  -  : Elsevier Science
KW  - Environmental sciences
ER  -