APA (7th ed.) Citation

Bailey, A. S., & Smith, H. L. (2008). The Tale of Ferdinand Frog. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bailey, Arthur Scott, and Harry L. Smith. The Tale of Ferdinand Frog. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Bailey, Arthur Scott, and Harry L. Smith. The Tale of Ferdinand Frog. Project Gutenberg, 2008.

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