Institute on Intellectual and Industrial Property Rights, Quezon City, 1975. (1975). Law on intellectual and industrial property: Proceedings of the Institute on Intellectual and Industrial Property Rights - 1975. U. P. Law Center.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Institute on Intellectual and Industrial Property Rights, Quezon City, 1975. Law on Intellectual and Industrial Property: Proceedings of the Institute on Intellectual and Industrial Property Rights - 1975. Quezon City: U. P. Law Center, 1975.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Institute on Intellectual and Industrial Property Rights, Quezon City, 1975. Law on Intellectual and Industrial Property: Proceedings of the Institute on Intellectual and Industrial Property Rights - 1975. U. P. Law Center, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.