APA (7th ed.) Citation

Knotek, P., Blahuš, P., & Knotková, H. Psychological structure of chronic pain.

Chicago Style (17th ed.) Citation

Knotek, Petr, Petr Blahuš, and Helena Knotková. Psychological Structure of Chronic Pain.

MLA (9th ed.) Citation

Knotek, Petr, et al. Psychological Structure of Chronic Pain.