APA (7th ed.) Citation

Hungerford, E. (2012). The Modern Railroad. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hungerford, Edward. The Modern Railroad. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Hungerford, Edward. The Modern Railroad. Project Gutenberg, 2012.

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