Ellgen, P. (2015). Psoas strength and flexibility: Core workouts to increase mobility, reduce injuries and end back pain. Ulysses Press.
Цитирование в стиле Чикаго (17-е изд.)Ellgen, Pamela. Psoas Strength and Flexibility: Core Workouts to Increase Mobility, Reduce Injuries and End Back Pain. Berklely, CA: Ulysses Press, 2015.
Цитирование MLA (8-е изд.)Ellgen, Pamela. Psoas Strength and Flexibility: Core Workouts to Increase Mobility, Reduce Injuries and End Back Pain. Ulysses Press, 2015.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.