Martela, F. (2020). A wonderful life: Insights on finding a meaningful existence. Harper Design, an Imprint of HarperCollinsPublishers.
Chicago-Zitierstil (17. Ausg.)Martela, Frank. A Wonderful Life: Insights on Finding a Meaningful Existence. New York: Harper Design, an Imprint of HarperCollinsPublishers, 2020.
MLA-Zitierstil (9. Ausg.)Martela, Frank. A Wonderful Life: Insights on Finding a Meaningful Existence. Harper Design, an Imprint of HarperCollinsPublishers, 2020.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.