Bureau. [2013-01-25]. (原始內容存檔於2012-07-14). Foster, Debra H.; Batorfalvy, Tatianna N.; and Medalie, Laura. Water Use in New Hampshire: An Activities Guide...
Bureau American Factfinder. [2011-11-08]. Foster, Debra H.; Batorfalvy, Tatianna N.; Medalie, Laura. Water Use in New Hampshire: An Activities Guide for...