00472    a2200133   4500082001800000100001800018245015600036260004400192300002000236650001400256650001200270650002800282650002800310  a338.4791bSIL  aSilva, D.A.C.  asustainable tourism development in Sri Lankaban appraisal of the international ibound tourism demand, the tourism industry and national tourism policy  aAmsterdambVrije Universityc2002g2002  axiv,228p.c24cm  aEconomics  aTourism  aSustainable development  aNational tourism policy