Philippine Printing Technical Foundation. (1974). Graphic arts directory: A listing of suppliers and services. s.n.
Cita Chicago (17th ed.)Philippine Printing Technical Foundation. Graphic Arts Directory: A Listing of Suppliers and Services. [Manila: s.n, 1974.
Cita MLA (9th ed.)Philippine Printing Technical Foundation. Graphic Arts Directory: A Listing of Suppliers and Services. s.n, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.