Sulu. Governor. (1904). Annual report. [s.n.].
Chicago-viite (17. p.)Sulu. Governor. Annual Report. Zamboanga: [s.n.], 1904.
MLA-viite (9. p.)Sulu. Governor. Annual Report. [s.n.], 1904.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.
Sulu. Governor. (1904). Annual report. [s.n.].
Chicago-viite (17. p.)Sulu. Governor. Annual Report. Zamboanga: [s.n.], 1904.
MLA-viite (9. p.)Sulu. Governor. Annual Report. [s.n.], 1904.