Agoncillo, T. A., & Vargas, J. B. (1984). The burden of proof: The Vargas-laurel collaboration case. University of the Philippines Press for the U.P.-Jorge B. Vargas Filipiniana Research Center Distributed outside the Philippines by the University of Hawaii Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Agoncillo, Teodoro A., و Jorge B. Vargas. The Burden of Proof: The Vargas-laurel Collaboration Case. Mandaluyong, Metro Manila, [Honolulu]: University of the Philippines Press for the U.P.-Jorge B. Vargas Filipiniana Research Center Distributed outside the Philippines by the University of Hawaii Press, 1984.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Agoncillo, Teodoro A., و Jorge B. Vargas. The Burden of Proof: The Vargas-laurel Collaboration Case. University of the Philippines Press for the U.P.-Jorge B. Vargas Filipiniana Research Center Distributed outside the Philippines by the University of Hawaii Press, 1984.