main index
P00: frame around
P01: olicognography
P03: infrastructures
wayout:contact
tropicalseagrass
waterhem.pollut.
watershedmanag.
pollution&welfare
naturaldisasters
ecol.impact.an.
citydevl.schem.
Odumsymb.
crudeoilprod.
ecol.assess.
communitycostbenefit
publ.priv.goods
