Friedlander, C. (2018). Complete vocal fitness: A singer's guide to physical training, anatomy, and biomechanics. Rowman & Littlefield.
Chicago-referens (17:e uppl.)Friedlander, Claudia. Complete Vocal Fitness: A Singer's Guide to Physical Training, Anatomy, and Biomechanics. Lanham, Maryland: Rowman & Littlefield, 2018.
MLA-referens (9:e uppl.)Friedlander, Claudia. Complete Vocal Fitness: A Singer's Guide to Physical Training, Anatomy, and Biomechanics. Rowman & Littlefield, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.