Citazione Stile APA (7a Edizione)

Sapalo, I. S. (1994). Background reading material on the intellectual property system of the Philippines (Rev. ed. 1994.). World Intellectual Property Organization.

Citazione stile Chigago Style (17a edizione)

Sapalo, Ignacio S. Background Reading Material on the Intellectual Property System of the Philippines. Rev. ed. 1994. Geneva: World Intellectual Property Organization, 1994.

Citatione MLA (9a ed.)

Sapalo, Ignacio S. Background Reading Material on the Intellectual Property System of the Philippines. Rev. ed. 1994. World Intellectual Property Organization, 1994.