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.
Atenció: Aquestes cites poden no estar 100% correctes.