Dyfyniad APA

Elizabeth Verkey. (2011). Law of patents (ed. 2.). Eastern Book.

Dyfyniad Arddull Chicago

Elizabeth Verkey. Law of Patents. ed. 2. Lucknow: Eastern Book, 2011.

Dyfyniad MLA

Elizabeth Verkey. Law of Patents. ed. 2. Eastern Book, 2011.

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