TY  - BOOK
AU  - Hall,D.O
TI  - International symposium on economic of ecosystem management(1983: Sept 26-30
AV  - HC 79 E5I57 C.1 
PY  - 1985///
CY  - Dordrecht
PB  - Dr.W. Junk
KW  - Environmental Policy-Congresses
ER  -