Beyer, H. O. (1943). A brief history of Fort Santiago, with historical notes on the old Walled City of Manila. s.n.
Chicago Style aipamenaBeyer, Henry Otley. A Brief History of Fort Santiago, with Historical Notes on the Old Walled City of Manila. [Manila: s.n, 1943.
MLA aipamenaBeyer, Henry Otley. A Brief History of Fort Santiago, with Historical Notes on the Old Walled City of Manila. s.n, 1943.
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