Romero, F. R. P. (1972). Aspects of Philippine labor relations law. Division of Publications, U.P. Law Center, University of the Philippines.
Chicago-referens (17:e uppl.)Romero, Flerida Ruth P. Aspects of Philippine Labor Relations Law. Quezon City: Division of Publications, U.P. Law Center, University of the Philippines, 1972.
MLA-referens (9:e uppl.)Romero, Flerida Ruth P. Aspects of Philippine Labor Relations Law. Division of Publications, U.P. Law Center, University of the Philippines, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.