APA (7th ed.) Citation

Martin, R. G. (1971). Philippine constitutional law (Rev. ed.). PGA Publications Co.

Chicago Style (17th ed.) Citation

Martin, Ruperto G. Philippine Constitutional Law. Rev. ed. Manila: PGA Publications Co, 1971.

MLA (9th ed.) Citation

Martin, Ruperto G. Philippine Constitutional Law. Rev. ed. PGA Publications Co, 1971.