Cita APA (7a ed.)

Ellgen, P. (2015). Psoas strength and flexibility: Core workouts to increase mobility, reduce injuries and end back pain. Ulysses Press.

Cita Chicago Style (17a ed.)

Ellgen, Pamela. Psoas Strength and Flexibility: Core Workouts to Increase Mobility, Reduce Injuries and End Back Pain. Berklely, CA: Ulysses Press, 2015.

Cita MLA (8a ed.)

Ellgen, Pamela. Psoas Strength and Flexibility: Core Workouts to Increase Mobility, Reduce Injuries and End Back Pain. Ulysses Press, 2015.

Precaución: Estas citas no son 100% exactas.