TY  - BOOK
AU  - C.A.Perrings
AU  - K.G.Maler
AU  - C.Folke
ED  - Biodiversity Programme
TI  - Biodiversity conservation: problems and policies 
SN  - 079233616X (acidfree paper)
AV  - QH75 .B5323 1995
U1  - 333.9516 
PY  - 1995///
CY  - Dordrecht ; Boston
PB  - Kluwer Academic Publishers
KW  - Biological diversity conservation
KW  - Biodiversity
KW  - Economic aspects
ER  -