APA

Annual report of the board of regents of the smithsonian institution, showing the operations, expenditures, and condition of the institution for the year ending june 30, 1906. Report of the U. S. National Museum. Washington : Government Printing Office, 1906: .

Chicago

Annual report of the board of regents of the smithsonian institution, showing the operations, expenditures, and condition of the institution for the year ending june 30, 1906. Report of the U. S. National Museum. Washington : Government Printing Office, 1906: .

Harvard

Annual report of the board of regents of the smithsonian institution, showing the operations, expenditures, and condition of the institution for the year ending june 30, 1906. Report of the U. S. National Museum. Washington : Government Printing Office, 1906: .

MLA

Washington : Government Printing Office, 1906: . .