00534nam a2200169 a 450000500170000000800410001704000250005804100080008310000220009124501140011326000560022730000100028365000170029365000140031065000170032470000230034120160820020003.0151114b        xxu||||| |||| 00| 0 spa d  aCO-BoIAVHcCO-BoIAVH  aeng  aAylward, Bruce A.  aWhat is biodiversity worth to a developing country? capturing the pharmaceutical value of species information  aLondonbLondon Environmental Economics Centrec1992  a10 p.  aBiodiversity  aEconomics  aEnviromental  aBarbier, Edward B.