Leland, J. (2018). Happiness is a choice you make: Lessons from a year among the oldest old (First edition.). Farrar, Straus and Giroux.
Style de citation Chicago (17e éd.)Leland, John. Happiness Is a Choice You Make: Lessons from a Year Among the Oldest Old. First edition. New York: Farrar, Straus and Giroux, 2018.
Style de citation MLA (8e éd.)Leland, John. Happiness Is a Choice You Make: Lessons from a Year Among the Oldest Old. First edition. Farrar, Straus and Giroux, 2018.
Attention : ces citations peuvent ne pas être correctes à 100%.