Pray, L., Yaktine, A. L., & Pankevich, D. (2014). Caffeine in food and dietary supplements: Examining safety : workshop summary. National Academies Press.

Pray, Leslie, Ann L. Yaktine, and Diana Pankevich. Caffeine in Food and Dietary Supplements: Examining Safety : Workshop Summary. Washington, District of Columbia: National Academies Press, 2014.

Pray, Leslie, et al. Caffeine in Food and Dietary Supplements: Examining Safety : Workshop Summary. National Academies Press, 2014.