APA引文

Leland, J. (2018). Happiness is a choice you make: Lessons from a year among the oldest old (First edition.). Farrar, Straus and Giroux.

Chicago Style (17th ed.) Citation

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.

MLA引文

Leland, John. Happiness Is a Choice You Make: Lessons from a Year Among the Oldest Old. First edition. Farrar, Straus and Giroux, 2018.

警告：這些引文格式不一定是100％准確.