Lilly, E. (1937). Prehistoric antiquities of Indiana: A description of the more notable earthworks, mounds, implements and ceremonial objects left in Indiana by our predecessors, together with some information as to their origin and antiquity, and the prehistory of Indiana. The Indiana Historical Society.
Chicago Style (17th ed.) CitationLilly, Eli. Prehistoric Antiquities of Indiana: A Description of the More Notable Earthworks, Mounds, Implements and Ceremonial Objects Left in Indiana by Our Predecessors, Together with Some Information as to Their Origin and Antiquity, and the Prehistory of Indiana. Indianapolis: The Indiana Historical Society, 1937.
MLA (9th ed.) CitationLilly, Eli. Prehistoric Antiquities of Indiana: A Description of the More Notable Earthworks, Mounds, Implements and Ceremonial Objects Left in Indiana by Our Predecessors, Together with Some Information as to Their Origin and Antiquity, and the Prehistory of Indiana. The Indiana Historical Society, 1937.