APA (7th ed.) Citation

Sawyer, F. H. (2011). The Inhabitants of the Philippines. Project Gutenberg.

Chicago Style (17th ed.) Citation

Sawyer, Frederic H. The Inhabitants of the Philippines. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Sawyer, Frederic H. The Inhabitants of the Philippines. Project Gutenberg, 2011.

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