APA (7th ed.) Citation

Roosevelt, W., & Schneider, S. (2010). The Frontier Boys in the Sierras; Or, The Lost Mine. Project Gutenberg.

Chicago Style (17th ed.) Citation

Roosevelt, Wyn, and S. Schneider. The Frontier Boys in the Sierras; Or, The Lost Mine. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Roosevelt, Wyn, and S. Schneider. The Frontier Boys in the Sierras; Or, The Lost Mine. Project Gutenberg, 2010.

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