Science and Technology Information Institute (Philippines). Philippine inventions. Science and Technology Information Institute, Dept. of Science and Technology.
Čikaški stil citiranja (17. izdanje)Science and Technology Information Institute (Philippines). Philippine Inventions. Manila, Philippines: Science and Technology Information Institute, Dept. of Science and Technology.
MLA način citiranja (8. izdanje)Science and Technology Information Institute (Philippines). Philippine Inventions. Science and Technology Information Institute, Dept. of Science and Technology.
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