Cita APA (7th ed.)

Beyer, H. O. (1943). A brief history of Fort Santiago, with historical notes on the old Walled City of Manila. s.n.

Cita Chicago (17th ed.)

Beyer, Henry Otley. A Brief History of Fort Santiago, with Historical Notes on the Old Walled City of Manila. [Manila: s.n, 1943.

Cita MLA (9th ed.)

Beyer, Henry Otley. A Brief History of Fort Santiago, with Historical Notes on the Old Walled City of Manila. s.n, 1943.