APA (7th ed.) Citation

Stevenson, R. L., Squire, M. H., & Mars, E. (2008). A Child's Garden of Verses. Project Gutenberg.

Chicago Style (17th ed.) Citation

Stevenson, Robert Louis, Maud Hunt Squire, and E. Mars. A Child's Garden of Verses. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Stevenson, Robert Louis, et al. A Child's Garden of Verses. Project Gutenberg, 2008.

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