Lawrence, Ruth A., 1994. Breastfeeding: A guide for the medical profession. Fourth Edition, Mossby, USA.
59
Akre, James, Ed., 1989. Infant feeding: the physiological basis. WHO Bulletin, OMS Supplement, Vol. 67; and Lawrence, Ruth A., 1994. Breastfeeding: A guide for the medical profession. Fourth Edition, Mossby, USA.
