Philippine Printing Technical Foundation. (1990). Graphic arts directory. Published by the Philippine Printing Technical Foundation.
Chicago-Zitierstil (17. Ausg.)Philippine Printing Technical Foundation. Graphic Arts Directory. Manila: Published by the Philippine Printing Technical Foundation, 1990.
MLA-Zitierstil (9. Ausg.)Philippine Printing Technical Foundation. Graphic Arts Directory. Published by the Philippine Printing Technical Foundation, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.