Ritschel, J., & Ellermann, L. (2019). The little book of speaking up: Find your voice in 5 minutes a day with 65 whole-body exercises. The Experiment, LLC.
Chicago Style (17th ed.) CitationRitschel, Jutta, and Lena Ellermann. The Little Book of Speaking Up: Find Your Voice in 5 Minutes a Day with 65 Whole-body Exercises. New York: The Experiment, LLC, 2019.
MLA (9th ed.) CitationRitschel, Jutta, and Lena Ellermann. The Little Book of Speaking Up: Find Your Voice in 5 Minutes a Day with 65 Whole-body Exercises. The Experiment, LLC, 2019.
Warning: These citations may not always be 100% accurate.