【题目】Twenty years on: The state of contemporary
ecotourismresearch【作者】David B. Weaver, a, and Laura J. Lawtona
【链接】
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V9R-4NJ26BK-1&_user=9656037&_coverDate=10%2F31%2F2007&_alid=1575883623&_rdoc=1&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5905&_st=1&_docanchor=&_ct=89&_acct=C000050221&_version=1&_urlVersion=0&_userid=9656037&md5=b4f7b5458a2f656651490d4584b1f337&searchtype=a