APA (7th ed.) Citation

The princeton language institute and Russell Roberts. (2001). 10 days to a sharper memory. Warner book.

Chicago Style (17th ed.) Citation

The princeton language institute and Russell Roberts. 10 Days to a Sharper Memory. New York: Warner book, 2001.

MLA (8th ed.) Citation

The princeton language institute and Russell Roberts. 10 Days to a Sharper Memory. Warner book, 2001.