Philippine Printing Technical Foundation. (1990). Graphic arts directory. Published by the Philippine Printing Technical Foundation.
Čikaški stil citiranja (17. izdanje)Philippine Printing Technical Foundation. Graphic Arts Directory. Manila: Published by the Philippine Printing Technical Foundation, 1990.
MLA način citiranja (9. izdanje)Philippine Printing Technical Foundation. Graphic Arts Directory. Published by the Philippine Printing Technical Foundation, 1990.
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