00403nam a2200145 a 4500001001400000003000400014008004100018020001500059050002600074100002100100245006200121260003900183300001900222650001600241vtls000018922MTX990902s1998    nyua     b    00110 eng d  a085199223400aG155.A1bW363 E4 19981 aWeaver, David B.10aEcotourism in the Less Developed World /cDavid B. Weaver  aLondon :bCAB International,c1998  a258 p. :bill. 0aEcotourism.