@online {148, title = {UNH Historic Map Library for New England}, publisher = {UNH Library}, abstract = {Historic topographic maps of New England states going back to the 1800s.}, keywords = {$\#$LegacyPublications, $\#$MapsDataPublications, $\#$Topo, 1800s, 1:24000, 1:31680, 7.5, historic, quadrangles, surveyed, topographic, topographic maps, topography}, url = {http://docs.unh.edu/nhtopos/nhtopos.htm} }