APA
Pearl J., Mackenzie D., . (2018). The book of why. New York: Basic Books.
Chicago
Pearl Judea, Mackenzie Dana, . 2018. The book of why. New York: Basic Books.
Harvard
Pearl J., Mackenzie D., . (2018). The book of why. New York: Basic Books.
MLA
Pearl Judea, Mackenzie Dana, . The book of why. New York: Basic Books. 2018.