APA-Zitierstil (7. Ausg.)

Gardner, T. A. (2019). The backpack: How to understand and manage yourself while loving others along the way. John Wiley & Sons, Inc.

Chicago-Zitierstil (17. Ausg.)

Gardner, Tim A. The Backpack: How to Understand and Manage Yourself While Loving Others Along the Way. Hoboken, New Jersey: John Wiley & Sons, Inc, 2019.

MLA-Zitierstil (9. Ausg.)

Gardner, Tim A. The Backpack: How to Understand and Manage Yourself While Loving Others Along the Way. John Wiley & Sons, Inc, 2019.