Velasco, F. U. Inaugural address delivered on the UNESCO-UPILS Regional Seminar on Standards for Information Handling, University of the Philippines, Diliman, Quezon City, February 9-13, 1981.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Velasco, Francisco U. Inaugural Address Delivered on the UNESCO-UPILS Regional Seminar on Standards for Information Handling, University of the Philippines, Diliman, Quezon City, February 9-13, 1981. 1981.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Velasco, Francisco U. Inaugural Address Delivered on the UNESCO-UPILS Regional Seminar on Standards for Information Handling, University of the Philippines, Diliman, Quezon City, February 9-13, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.