Spiess, A. E. (1988). Maine's unwritten past: State plan for prehistoric archaeology. Maine Historic Preservation Commission.
Chicago Style (17th ed.) CitationSpiess, Arthur E. Maine's Unwritten Past: State Plan for Prehistoric Archaeology. [Augusta, Maine]: Maine Historic Preservation Commission, 1988.
MLA (9th ed.) CitationSpiess, Arthur E. Maine's Unwritten Past: State Plan for Prehistoric Archaeology. Maine Historic Preservation Commission, 1988.
Warning: These citations may not always be 100% accurate.