Barker, B. M. (1980). Vitamins in medicine (4ª ed.). William Heinemann Medical Books.
Chicago-čujuhus (17. p.)Barker, Brian M. Vitamins in Medicine. 4ª ed. William Heinemann Medical Books, 1980.
MLA-čujuhus (9. p.)Barker, Brian M. Vitamins in Medicine. 4ª ed. William Heinemann Medical Books, 1980.
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