Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.