Philippine Library Association & Philippine Library Association. Biennial Conference, Manila, 1949. (1949). Program of the silver jubilee anniversary celebration of the Philippine Library Association, November 1948-August 1949: Biennial Conference, Manila, August 22-25, 1949. s.n.
Lua i Stíl Chicago (17ú heag.)Philippine Library Association agus Manila Philippine Library Association. Biennial Conference. Program of the Silver Jubilee Anniversary Celebration of the Philippine Library Association, November 1948-August 1949: Biennial Conference, Manila, August 22-25, 1949. [Manila: s.n, 1949.
Lua MLA (9ú heag.)Philippine Library Association agus Manila Philippine Library Association. Biennial Conference. Program of the Silver Jubilee Anniversary Celebration of the Philippine Library Association, November 1948-August 1949: Biennial Conference, Manila, August 22-25, 1949. s.n, 1949.