Herting, D. C.; Drury, E. J. E. (1963). „Vitamin E Content of Vegetable Oils and Fats“. J. Nutr. 81 (4): 4017–4021. doi:10.1093/jn/81.4.335. PMID14100992.
Herting, D. C.; Drury, E. J. E. (1963). „Vitamin E Content of Vegetable Oils and Fats“. J. Nutr. 81 (4): 4017–4021. doi:10.1093/jn/81.4.335. PMID14100992.