Del Prado, M. G. (1960). "A short history of the district of Albay". s.n.
Chicago Style (17th ed.) CitationDel Prado, Mariano Goyena. "A Short History of the District of Albay". s.l: s.n, 1960.
MLA (8th ed.) CitationDel Prado, Mariano Goyena. "A Short History of the District of Albay". s.n, 1960.
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