APA (7th ed.) Citation

Zaide, G. F. (1953). Rizal as historian. [s.n.].

Chicago Style (17th ed.) Citation

Zaide, Gregorio F. Rizal as Historian. Manila: [s.n.], 1953.

MLA (9th ed.) Citation

Zaide, Gregorio F. Rizal as Historian. [s.n.], 1953.