Não informado. (2008). Bulletin of the United States National Museum. Government Printing Office.
Chicago-referens (17:e uppl.)Não informado. Bulletin of the United States National Museum. Washington: Government Printing Office, 2008.
MLA-referens (8:e uppl.)Não informado. Bulletin of the United States National Museum. Government Printing Office, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.