Cita APA (7th ed.)

Ducay, B. S. (1977). The struggle of the Filipinos for liberty [microform]. Photoduplication Service.

Cita Chicago (17th ed.)

Ducay, Bernardo Salvador. The Struggle of the Filipinos for Liberty [microform]. Quezon City: Photoduplication Service, 1977.

Cita MLA (9th ed.)

Ducay, Bernardo Salvador. The Struggle of the Filipinos for Liberty [microform]. Photoduplication Service, 1977.