University of the Philippines (Quezon City). Law Complex. Information and Publication Division & Labitag, E. A. (2006). Answers to bar examination questions in civil law (1975-2005). Information and Publication Division, UP Law Complex.
Čikaški stil citiranja (17. izdanje)University of the Philippines (Quezon City). Law Complex. Information and Publication Division i Eduardo A. Labitag. Answers to Bar Examination Questions in Civil Law (1975-2005). Quezon City: Information and Publication Division, UP Law Complex, 2006.
MLA način citiranja (9. izdanje)University of the Philippines (Quezon City). Law Complex. Information and Publication Division i Eduardo A. Labitag. Answers to Bar Examination Questions in Civil Law (1975-2005). Information and Publication Division, UP Law Complex, 2006.