APA
Seeman M. F., . (1988). Ohio hopewell trophy skull artifacts as evidence for competition in middle woodland societies Circa 50 B.C.- A.D. 350. Washington-US: Society for American Archaeology.
Chicago
Seeman Mark F, . 1988. Ohio hopewell trophy skull artifacts as evidence for competition in middle woodland societies Circa 50 B.C.- A.D. 350. Washington-US: Society for American Archaeology.
Harvard
Seeman M. F., . (1988). Ohio hopewell trophy skull artifacts as evidence for competition in middle woodland societies Circa 50 B.C.- A.D. 350. Washington-US: Society for American Archaeology.
MLA
Seeman Mark F, . Ohio hopewell trophy skull artifacts as evidence for competition in middle woodland societies Circa 50 B.C.- A.D. 350. Washington-US: Society for American Archaeology. 1988.