APA (7th ed.) Citation

McElroy, J. (2010). The Economic Functions of Vice. Project Gutenberg.

Chicago Style (17th ed.) Citation

McElroy, John. The Economic Functions of Vice. Project Gutenberg, 2010.

MLA (9th ed.) Citation

McElroy, John. The Economic Functions of Vice. Project Gutenberg, 2010.

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