Cita APA (7a ed.)

Valenzuela, P., & Serrano, L. Memoirs of the K.K.K. and the Philippine Revolution. [publisher not identified].

Cita Chicago Style (17a ed.)

Valenzuela, Pio, y Luis Serrano. Memoirs of the K.K.K. and the Philippine Revolution. [place of publication not identified]: [publisher not identified].

Cita MLA (9a ed.)

Valenzuela, Pio, y Luis Serrano. Memoirs of the K.K.K. and the Philippine Revolution. [publisher not identified].