APA (7th ed.) Citation

Leavitt, J. (2008). Cheap Postage. Project Gutenberg.

Chicago Style (17th ed.) Citation

Leavitt, Joshua. Cheap Postage. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Leavitt, Joshua. Cheap Postage. Project Gutenberg, 2008.

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