MLA

Bartl, and Christoph Bartl. The Osteoporosis Manual. Springer International Publishing, 2019.

APA

Bartl, B., & Bartl, C. (2019). The Osteoporosis Manual. Springer International Publishing.

Chicago

Bartl, and Christoph Bartl. The Osteoporosis Manual. : Springer International Publishing, 2019.