APA (7th ed.) Citation

Robins, E. (2011). The Open Question: A Tale of Two Temperaments. Project Gutenberg.

Chicago Style (17th ed.) Citation

Robins, Elizabeth. The Open Question: A Tale of Two Temperaments. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Robins, Elizabeth. The Open Question: A Tale of Two Temperaments. Project Gutenberg, 2011.

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