Cita APA (7th ed.)

Valencia, E. I. (1977). President Sergio Osmena. s.n.] Regal Printing.

Cita Chicago (17th ed.)

Valencia, Elpidio I. President Sergio Osmena. [s.l., Manila: s.n.] Regal Printing, 1977.

Cita MLA (9th ed.)

Valencia, Elpidio I. President Sergio Osmena. s.n.] Regal Printing, 1977.