APA-referens (7:e uppl.)

Schumacher, J. N. (2011). The Rizal bill of 1956: Horacio de la Costa and the bishops. Philippine Studies: Historical and Ethnographic Viewpoints.

Chicago-referens (17:e uppl.)

Schumacher, John N. "The Rizal Bill of 1956: Horacio De La Costa and the Bishops." Philippine Studies: Historical and Ethnographic Viewpoints 2011.

MLA-referens (9:e uppl.)

Schumacher, John N. "The Rizal Bill of 1956: Horacio De La Costa and the Bishops." Philippine Studies: Historical and Ethnographic Viewpoints, 2011.

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