APA (7th ed.) Citation

Grimalkin, T., Billings, H., & Baker, W. J. (2009). Tales From Catland, for Little Kittens. Project Gutenberg.

Chicago Style (17th ed.) Citation

Grimalkin, Tabitha, Hammatt Billings, and William Jay Baker. Tales From Catland, for Little Kittens. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Grimalkin, Tabitha, et al. Tales From Catland, for Little Kittens. Project Gutenberg, 2009.

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