Simtel MSDOS Archive CDROM, March 1997.  Walnut Creek CDROM.
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 Geography
 path: \disc1\geogrphy 
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basis24.zip  Comprehensive Land Surveying Computations
eurv22.zip   Europe!: Game teaches European geography
vnmyhome.zip Geography of Vietnam, in English
vnquetoi.zip Geography of Vietnam, in Vietnamese