APA (7th ed.) Citation

Marchant, J., & Wallace, A. R. (2005). Alfred Russel Wallace: Letters and Reminiscences, Vol. 2. Project Gutenberg.

Chicago Style (17th ed.) Citation

Marchant, James, and Alfred Russel Wallace. Alfred Russel Wallace: Letters and Reminiscences, Vol. 2. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Marchant, James, and Alfred Russel Wallace. Alfred Russel Wallace: Letters and Reminiscences, Vol. 2. Project Gutenberg, 2005.

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