Central Book Supply. (1973). The New constitution for Philippine schools .With a comparative study of the 1935 and 1973 constitutions and a comprehensive primer on the constitution, a primer on the parliamentary system. Central Book Supply.
Παραπομπή σε μορφή Chicago (17η εκδ.)Central Book Supply. The New Constitution for Philippine Schools .With a Comparative Study of the 1935 and 1973 Constitutions and a Comprehensive Primer on the Constitution, a Primer on the Parliamentary System. Manila: Central Book Supply, 1973.
Παραπομπή σε μορφή MLA (9th εκδ.)Central Book Supply. The New Constitution for Philippine Schools .With a Comparative Study of the 1935 and 1973 Constitutions and a Comprehensive Primer on the Constitution, a Primer on the Parliamentary System. Central Book Supply, 1973.