Citazione Stile APA (7a Edizione)

Villarroel, F. (1964). Apolinario Mabini: His birth date and student years. National Historical Institute.

Citazione stile Chigago Style (17a edizione)

Villarroel, Fidel. Apolinario Mabini: His Birth Date and Student Years. Manila: National Historical Institute, 1964.

Citatione MLA (9a ed.)

Villarroel, Fidel. Apolinario Mabini: His Birth Date and Student Years. National Historical Institute, 1964.