APA (7th ed.) Citation

Elson, W. H., & Keck, C. M. (2005). The Elson Readers, Book 5. Project Gutenberg.

Chicago Style (17th ed.) Citation

Elson, William H., and Christine M. Keck. The Elson Readers, Book 5. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Elson, William H., and Christine M. Keck. The Elson Readers, Book 5. Project Gutenberg, 2005.

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