Philippine Islands. Bureau of Prisons & Victorio, R. (1927). Catalogue of products of the Industrial Division, of the Bilibid Prison and general information relative to the Bureau of Prisons, including a lecture on the Prison system of the Philippine Islands delivered by Mr. Ramon Victorio, Director of Prisons, in the American Prison Congress held at Salt Lake City, August 15-22, 1924 (Revised June 1927). P.W.C. Press.

Philippine Islands. Bureau of Prisons e Ramon Victorio. Catalogue of Products of the Industrial Division, of the Bilibid Prison and General Information Relative to the Bureau of Prisons, Including a Lecture on the Prison System of the Philippine Islands Delivered by Mr. Ramon Victorio, Director of Prisons, in the American Prison Congress Held at Salt Lake City, August 15-22, 1924 (Revised June 1927). Manila: P.W.C. Press, 1927.

Philippine Islands. Bureau of Prisons e Ramon Victorio. Catalogue of Products of the Industrial Division, of the Bilibid Prison and General Information Relative to the Bureau of Prisons, Including a Lecture on the Prison System of the Philippine Islands Delivered by Mr. Ramon Victorio, Director of Prisons, in the American Prison Congress Held at Salt Lake City, August 15-22, 1924 (Revised June 1927). P.W.C. Press, 1927.