Barrows, D. P. (2009). The Negrito and Allied Types in the Philippines and The Ilongot or Ibilao of Luzon. Project Gutenberg.
Chicago Style (17th ed.) CitationBarrows, David P. The Negrito and Allied Types in the Philippines and The Ilongot or Ibilao of Luzon. Project Gutenberg, 2009.
MLA (9th ed.) CitationBarrows, David P. The Negrito and Allied Types in the Philippines and The Ilongot or Ibilao of Luzon. Project Gutenberg, 2009.
Warning: These citations may not always be 100% accurate.