APA-referens (7:e uppl.)

Lilly, B. A. W. (1973). Trece Martires: Birth of a city [microform]. Photoduplication Service.

Chicago-referens (17:e uppl.)

Lilly, Barbara Anne Williams. Trece Martires: Birth of a City [microform]. Quezon City: Photoduplication Service, 1973.

MLA-referens (9:e uppl.)

Lilly, Barbara Anne Williams. Trece Martires: Birth of a City [microform]. Photoduplication Service, 1973.