APA (7th ed.) Citation

Leblanc, M., & Teixeira de Mattos, A. (2009). The Frontier. Project Gutenberg.

Chicago Style (17th ed.) Citation

Leblanc, Maurice, and Alexander Teixeira de Mattos. The Frontier. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Leblanc, Maurice, and Alexander Teixeira de Mattos. The Frontier. Project Gutenberg, 2009.

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