APA (7th ed.) Citation

Chew, T. O. (2010). Practical High School Speller. Project Gutenberg.

Chicago Style (17th ed.) Citation

Chew, Tobias O. Practical High School Speller. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Chew, Tobias O. Practical High School Speller. Project Gutenberg, 2010.

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