APA (7th ed.) Citation

Williams, J. H. (2013). The Guardians of the Columbia Mount Hood, Mount Adams and Mount St. Helens. Project Gutenberg.

Chicago Style (17th ed.) Citation

Williams, John H. The Guardians of the Columbia Mount Hood, Mount Adams and Mount St. Helens. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Williams, John H. The Guardians of the Columbia Mount Hood, Mount Adams and Mount St. Helens. Project Gutenberg, 2013.

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