APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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