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.

Sta. Maria, Felixberto C., and 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.

Sta. Maria, Felixberto C., and 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.