Castillo, A. V. (1949). Philippine economics. [s.n.].
Chicago Style aipamenaCastillo, Andres Villegas. Philippine Economics. Manila: [s.n.], 1949.
MLA aipamenaCastillo, Andres Villegas. Philippine Economics. [s.n.], 1949.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.