Sapalo, I. S. Philippine law on patents trademarks and copyright: (background reading material on intellectual property, philippine national supplement).
Citace podle Chicago (17th ed.)Sapalo, Ignacio S. Philippine Law on Patents Trademarks and Copyright: (background Reading Material on Intellectual Property, Philippine National Supplement).
Citace podle MLA (9th ed.)Sapalo, Ignacio S. Philippine Law on Patents Trademarks and Copyright: (background Reading Material on Intellectual Property, Philippine National Supplement).
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