'Jones brothers publishing co' presentation slideshows

Mapping political regions Where do you draw the line? What natural and human factors must be considered?

Mapping political regions Where do you draw the line? What natural and human factors must be considered?. http://3.bp.blogspot.com/_jE_9LpnbmHU/R-nPQKGTU_I/AAAAAAAAAQQ/JR_cRcyNYX0/S1600-R/hand%2Bdrawn%2Bmaps.jpg. Sometimes only a frontier exists, an undefined boundary.

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