APA (7th ed.) Citation

Barker, B. M. (1980). Vitamins in medicine (4ª ed.). William Heinemann Medical Books.

Chicago Style (17th ed.) Citation

Barker, Brian M. Vitamins in Medicine. 4ª ed. William Heinemann Medical Books, 1980.

MLA (9th ed.) Citation

Barker, Brian M. Vitamins in Medicine. 4ª ed. William Heinemann Medical Books, 1980.

Warning: These citations may not always be 100% accurate.