Cita APA (7th ed.)

Del Prado, M. G. (1957). "Albay-the beautiful but unknown". s.n.

Cita Chicago (17th ed.)

Del Prado, Mariano Goyena. "Albay-the Beautiful but Unknown". s.l: s.n, 1957.

Cita MLA (9th ed.)

Del Prado, Mariano Goyena. "Albay-the Beautiful but Unknown". s.n, 1957.