APA-referens (7:e uppl.)

Caceres, M. V. P. (2011). Colonia Penal De San Ramon (circa 1870): The first Spanish correctional institution in Southern Philippines. Ad Veritatem.

Chicago-referens (17:e uppl.)

Caceres, Michael Vincent P. "Colonia Penal De San Ramon (circa 1870): The First Spanish Correctional Institution in Southern Philippines." Ad Veritatem 2011.

MLA-referens (9:e uppl.)

Caceres, Michael Vincent P. "Colonia Penal De San Ramon (circa 1870): The First Spanish Correctional Institution in Southern Philippines." Ad Veritatem, 2011.