APA
Quisumbing P. V., Quisumbing P. V. & HSeminar on Labor Relations Law. (1976). Labor Relations law 1976. Quezon City: U. P. Law Center.
Chicago
Quisumbing Purification V, Quisumbing Purification V and HSeminar on Labor Relations Law. 1976. Labor Relations law 1976. Quezon City: U. P. Law Center.
Harvard
Quisumbing P. V., Quisumbing P. V. and HSeminar on Labor Relations Law. (1976). Labor Relations law 1976. Quezon City: U. P. Law Center.
MLA
Quisumbing Purification V, Quisumbing Purification V and HSeminar on Labor Relations Law. Labor Relations law 1976. Quezon City: U. P. Law Center. 1976.