APA (7th ed.) Citation

Duffy, E. (2008). History of the 159th Regiment, N.Y.S.V. Project Gutenberg.

Chicago Style (17th ed.) Citation

Duffy, Edward. History of the 159th Regiment, N.Y.S.V. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Duffy, Edward. History of the 159th Regiment, N.Y.S.V. Project Gutenberg, 2008.

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