kaufman, J. (2013). The first 20 hours: How to learn anything fast. Portfolio Penguin.
Style de citation Chicago (17e éd.)kaufman, Josh. The First 20 Hours: How to Learn Anything Fast. London: Portfolio Penguin, 2013.
Style de citation MLA (9e éd.)kaufman, Josh. The First 20 Hours: How to Learn Anything Fast. Portfolio Penguin, 2013.
Attention : ces citations peuvent ne pas être correctes à 100%.