APA
(1997). Inventory of intellectual property protection laws and enforcement measures in the Western Hemisphere (preliminary version) : plant varieties. [Washington]US: OAS.
Chicago
1997. Inventory of intellectual property protection laws and enforcement measures in the Western Hemisphere (preliminary version) : plant varieties. [Washington]US: OAS.
Harvard
(1997). Inventory of intellectual property protection laws and enforcement measures in the Western Hemisphere (preliminary version) : plant varieties. [Washington]US: OAS.
MLA
Inventory of intellectual property protection laws and enforcement measures in the Western Hemisphere (preliminary version) : plant varieties. [Washington]US: OAS. 1997.