APA (7th ed.) Citation

Ocampo, N. S. Piuerto Princesa as frontier.

Chicago Style (17th ed.) Citation

Ocampo, Nilo S. Piuerto Princesa as Frontier.

MLA (9th ed.) Citation

Ocampo, Nilo S. Piuerto Princesa as Frontier.

Warning: These citations may not always be 100% accurate.