APA (7th ed.) Citation

Young, S. H. (2009). Alaska Days with John Muir. Project Gutenberg.

Chicago Style (17th ed.) Citation

Young, Samual Hall. Alaska Days with John Muir. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Young, Samual Hall. Alaska Days with John Muir. Project Gutenberg, 2009.

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