APA (7th ed.) Citation

Pennoyer, F. D. The hidden Negrito language of Panay, Philippines. The Philippine journal of linguistics..

Chicago Style (17th ed.) Citation

Pennoyer, F. Douglas. "The Hidden Negrito Language of Panay, Philippines." The Philippine Journal of Linguistics. .

MLA (9th ed.) Citation

Pennoyer, F. Douglas. "The Hidden Negrito Language of Panay, Philippines." The Philippine Journal of Linguistics., .

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