Dyfyniad APA

343732 Tay, C. S. K. (1990). A guide to protecting your ideas, inventions, trade marks & products. Singapore : Times, 1997.

Dyfyniad Arddull Chicago

343732 Tay, Catherine Swee Kian. A Guide to Protecting Your Ideas, Inventions, Trade Marks & Products. Singapore : Times, 1997, 1990.

Dyfyniad MLA

343732 Tay, Catherine Swee Kian. A Guide to Protecting Your Ideas, Inventions, Trade Marks & Products. Singapore : Times, 1997, 1990.

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