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Autor:
Wong, DavidW.1 (AUTHOR) dwong2@gmu.edu
Publikováno v:
Professional Geographer. May2005, Vol. 57 Issue 2, p285-294. 10p.
Autor:
Buckwalter, Donald W.1, Rugg, Dean S.2
Publikováno v:
Professional Geographer. Aug86, Vol. 38 Issue 3, p258-263. 6p.