APA (7th ed.) Citation

Pena, N. (1973). Philippine law on natural resources (Rev. ed.). Pasicolan Book Service.

Chicago Style (17th ed.) Citation

Pena, Narciso. Philippine Law on Natural Resources. Rev. ed. Manila: Pasicolan Book Service, 1973.

MLA (9th ed.) Citation

Pena, Narciso. Philippine Law on Natural Resources. Rev. ed. Pasicolan Book Service, 1973.