APA (7th ed.) Citation

Del Prado, M. G. (1960). "A short history of the district of Albay". s.n.

Chicago Style (17th ed.) Citation

Del Prado, Mariano Goyena. "A Short History of the District of Albay". s.l: s.n, 1960.

MLA (9th ed.) Citation

Del Prado, Mariano Goyena. "A Short History of the District of Albay". s.n, 1960.