APA (7th ed.) Citation

Gabel, C., Melloh, M., & Cuesta-Vargas, A. (2011). Factor structure of the neck disability index.

Chicago Style (17th ed.) Citation

Gabel, C., Markus Melloh, and A. Cuesta-Vargas. Factor Structure of the Neck Disability Index. 2011.

MLA (9th ed.) Citation

Gabel, C., et al. Factor Structure of the Neck Disability Index. 2011.