University of the Philippines (Diliman). Law Center & Labitag, E. A. (1981). Answers to bar examination questions in legal ethics and practical exercises (1975-2007). The Center.
Chicago-referens (17:e uppl.)University of the Philippines (Diliman). Law Center och Eduardo A. Labitag. Answers to Bar Examination Questions in Legal Ethics and Practical Exercises (1975-2007). Quezon City: The Center, 1981.
MLA-referens (9:e uppl.)University of the Philippines (Diliman). Law Center och Eduardo A. Labitag. Answers to Bar Examination Questions in Legal Ethics and Practical Exercises (1975-2007). The Center, 1981.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.