APA (7th ed.) Citation
Hess, S. Y., Thurnham, D. I., & Hurrell, R. F. (2005). Influence of provitamin A carotenoids on iron, zinc, and vitamin A status. International Food Policy Research Institute.
Chicago Style (17th ed.) Citation
Hess, Sonja Y., David I. Thurnham, and Richard F. Hurrell. Influence of Provitamin A Carotenoids on Iron, Zinc, and Vitamin A Status. International Food Policy Research Institute, 2005.
MLA (9th ed.) Citation
Hess, Sonja Y., et al. Influence of Provitamin A Carotenoids on Iron, Zinc, and Vitamin A Status. International Food Policy Research Institute, 2005.
Warning: These citations may not always be 100% accurate.