3 ms·
They are probably using MSA instead of PSA: http://en.wikipedia.org/wiki/List_of_primary_statistical_areas_of_the_United_States http://en.wikipedia.org/wiki/Lis
by jmccree 12y ago
They are probably using MSA instead of PSA: http://en.wikipedia.org/wiki/List_of_primary_statistical_areas_of_the_United_States http://en.wikipedia.org/wiki/List_of_primary_statistical_are... .