APA (7th ed.) Citation

Herr, G. L. (2011). The Nation Behind Prison Bars. Project Gutenberg.

Chicago Style (17th ed.) Citation

Herr, George L. The Nation Behind Prison Bars. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Herr, George L. The Nation Behind Prison Bars. Project Gutenberg, 2011.

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