Cita APA

World Intellectual Property Organization. (2006). International patent classification: Core level (8. edition.). [Geneva, Switzerland]: WIPO.

Citación estilo Chicago

World Intellectual Property Organization. International Patent Classification: Core Level. 8. edition. [Geneva, Switzerland]: WIPO, 2006.

Cita MLA

World Intellectual Property Organization. International Patent Classification: Core Level. 8. edition. [Geneva, Switzerland]: WIPO, 2006.

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