APA (7th ed.) Citation

Carroll, L. (1990). Through the looking glass. Project Gutenberg.

Chicago Style (17th ed.) Citation

Carroll, Lewis. Through the Looking Glass. Champaign, Ill: Project Gutenberg, 1990.

MLA (9th ed.) Citation

Carroll, Lewis. Through the Looking Glass. Project Gutenberg, 1990.

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