APA (7th ed.) Citation

Nicolay, H. (1990). The boys' life of Abraham Lincoln. Project Gutenberg.

Chicago Style (17th ed.) Citation

Nicolay, Helen. The Boys' Life of Abraham Lincoln. Champaign, Ill: Project Gutenberg, 1990.

MLA (9th ed.) Citation

Nicolay, Helen. The Boys' Life of Abraham Lincoln. Project Gutenberg, 1990.

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