Não informado. (1974). Publications in archeology. U.S. National Park Service.
Chicago-viite (17. p.)Não informado. Publications in Archeology. Washington: U.S. National Park Service, 1974.
MLA-viite (8. p.)Não informado. Publications in Archeology. U.S. National Park Service, 1974.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
