APA (7th ed.) Citation

Vanderkam, L. (2013). What the most successful people do before breakfast. Portfolio/Penguin.

Chicago Style (17th ed.) Citation

Vanderkam, Laura. What the Most Successful People Do Before Breakfast. London: Portfolio/Penguin, 2013.

MLA (9th ed.) Citation

Vanderkam, Laura. What the Most Successful People Do Before Breakfast. Portfolio/Penguin, 2013.

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