University of the Philippines. Law Center. Division of Continuing Legal Education & Romero, F. R. P. (1975). Labor relations law in transition: Proceedings of the Eleventh Annual Institute on Labor Relations Law, U.P. Law Center, Diliman, Quezon City. U.P. Law Center.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিUniversity of the Philippines. Law Center. Division of Continuing Legal Education এবং Flerida Ruth P. Romero. Labor Relations Law in Transition: Proceedings of the Eleventh Annual Institute on Labor Relations Law, U.P. Law Center, Diliman, Quezon City. Quezon City: U.P. Law Center, 1975.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিUniversity of the Philippines. Law Center. Division of Continuing Legal Education এবং Flerida Ruth P. Romero. Labor Relations Law in Transition: Proceedings of the Eleventh Annual Institute on Labor Relations Law, U.P. Law Center, Diliman, Quezon City. U.P. Law Center, 1975.