Cita APA (7a ed.)

Payumo, R. R. Grimmest episode in Philippine history: Discussions on an extraordinary ambition and greed and treachery. s.n.

Cita Chicago Style (17a ed.)

Payumo, Ricardo R. Grimmest Episode in Philippine History: Discussions on an Extraordinary Ambition and Greed and Treachery. [S.l: s.n.

Cita MLA (9a ed.)

Payumo, Ricardo R. Grimmest Episode in Philippine History: Discussions on an Extraordinary Ambition and Greed and Treachery. s.n.