[Documents on the rejection of the proposed 1972 Constitution in the plebiscite on January 15, 1973] [microform]. University of the Philippines Library.
Chicago-Zitierstil (17. Ausg.)[Documents on the Rejection of the Proposed 1972 Constitution in the Plebiscite on January 15, 1973] [microform]. Quezon City: University of the Philippines Library.
MLA-Zitierstil (9. Ausg.)[Documents on the Rejection of the Proposed 1972 Constitution in the Plebiscite on January 15, 1973] [microform]. University of the Philippines Library.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.