Barker, B. M. (1980). Vitamins in medicine (4ª ed.). William Heinemann Medical Books.
Cita Chicago Style (17a ed.)Barker, Brian M. Vitamins in Medicine. 4ª ed. William Heinemann Medical Books, 1980.
Cita MLA (9a ed.)Barker, Brian M. Vitamins in Medicine. 4ª ed. William Heinemann Medical Books, 1980.
Precaución: Estas citas no son 100% exactas.