Sta. Maria, F. C., & Lopez, S. P. (1969). Answer with affirmative defenses: F.C. Sta. Maria, petitioner, vs. Salvador P. Lopez, the Board of Regents of the University of the Philippines and Nemesio Ceralde, respondents. G.R. No. 30773, Supreme Court. University of the Philippines Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sta. Maria, Felixberto C., و Salvador P. Lopez. Answer with Affirmative Defenses: F.C. Sta. Maria, Petitioner, Vs. Salvador P. Lopez, the Board of Regents of the University of the Philippines and Nemesio Ceralde, Respondents. G.R. No. 30773, Supreme Court. [Quezon City: University of the Philippines Press, 1969.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Sta. Maria, Felixberto C., و Salvador P. Lopez. Answer with Affirmative Defenses: F.C. Sta. Maria, Petitioner, Vs. Salvador P. Lopez, the Board of Regents of the University of the Philippines and Nemesio Ceralde, Respondents. G.R. No. 30773, Supreme Court. University of the Philippines Press, 1969.