6Barry Wellar.Geography and the Midia:Strengthening the Relationship,Discussion Paper for Symposium on Projecting Geography in the Public Domain in Canada[M].Canadian Association of Geographers Annual Meeting,University of Western Ontario,London,May 31-June 4,2005
7Johnston,R.J.,Derek Gregory,Geraldine Pratt,and Michael Watts (eds.).The Dictionary of Human Geography (4th ed.)[M].Oxford:Blackwell,2000.
8C.O.SAUER,The morphology of landscape[M ].University of California Publications in Geography,1962.
