APA (7th ed.) Citation

Defoe, D. (2006). An Essay Upon Projects. Project Gutenberg.

Chicago Style (17th ed.) Citation

Defoe, Daniel. An Essay Upon Projects. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Defoe, Daniel. An Essay Upon Projects. Project Gutenberg, 2006.

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