APA (7th ed.) Citation

Wolff, H. G., Silberstein, S. D., Lipton, R. B., & Dalessio, D. J. (2001). Wolff's headache and other head pain. Oxford University Press.

Chicago Style (17th ed.) Citation

Wolff, Harold G., Stephen D. Silberstein, Richard B. Lipton, and Donald J. Dalessio. Wolff's Headache and Other Head Pain. New York: Oxford University Press, 2001.

MLA (9th ed.) Citation

Wolff, Harold G., et al. Wolff's Headache and Other Head Pain. Oxford University Press, 2001.