Philippine Printing Technical Foundation. (1974). Graphic arts directory: A listing of suppliers and services. s.n.
Lua i Stíl Chicago (17ú heag.)Philippine Printing Technical Foundation. Graphic Arts Directory: A Listing of Suppliers and Services. [Manila: s.n, 1974.
Lua MLA (9ú heag.)Philippine Printing Technical Foundation. Graphic Arts Directory: A Listing of Suppliers and Services. s.n, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.