APA (7th ed.) Citation

Metchnikoff, O. (2013). Life of Elie Metchnikoff, 1845-1916. Project Gutenberg.

Chicago Style (17th ed.) Citation

Metchnikoff, Olga. Life of Elie Metchnikoff, 1845-1916. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Metchnikoff, Olga. Life of Elie Metchnikoff, 1845-1916. Project Gutenberg, 2013.

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