APA

Estados Unidos de América. Congreso, .Smithsonian Institution United States National Museum. Report on the progress and condition of the U. S. National Museum for the year ending june 30, 1911. Washington : Government Printing Office, 1912: .

Chicago

Estados Unidos de América. Congreso, .Smithsonian Institution United States National Museum. Report on the progress and condition of the U. S. National Museum for the year ending june 30, 1911. Washington : Government Printing Office, 1912: .

Harvard

Estados Unidos de América. Congreso, .Smithsonian Institution United States National Museum. Report on the progress and condition of the U. S. National Museum for the year ending june 30, 1911. Washington : Government Printing Office, 1912: .

MLA

Estados Unidos de América. Congreso, .Washington : Government Printing Office, 1912: . .