00406nam a2200133Ia 450000500170000008000180001710000170003524500710005226000360012352000660015958300180022594200120024399900170025520260716043414.0  a08.13.01 L784  aLivan, Karen  aChallenge of sustainable small (and medium) scale mining in Guyana  bA.A. BalkemaaRotterdamNLc2000  aFocuses on miningin Guyana and its impact on the environment.  c2/6/01kJOY_D  cAmL784  c46583d46583