The University of New Hampshire Survey Center included a question on its July 2004 Granite State Poll for the New Hampshire Estuaries Project. The major purposes of these questions were to assess the knowledge of New Hampshire residents concerning the meaning of an estuary. Five hundred and nine (509) New Hampshire adults were interviewed by telephone between July 6 and July 20, 2004.
University of New Hampshire Survey Center
Smith, Andrew E. and Junius, Dennis M., "Granite State Poll for New Hampshire Estuaries Project" (2004). PREP Reports & Publications. 310.