APA (7th ed.) Citation

Schmitz, J. H., & Summers, L. (2009). Ham Sandwich. Project Gutenberg.

Chicago Style (17th ed.) Citation

Schmitz, James H., and Leo Summers. Ham Sandwich. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Schmitz, James H., and Leo Summers. Ham Sandwich. Project Gutenberg, 2009.

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