Não informado. (1991). Professional care mother & child. Professional, Managerial & Healthcare Publications.
Chicago-referens (17:e uppl.)Não informado. Professional Care Mother & Child. London: Professional, Managerial & Healthcare Publications, 1991.
MLA-referens (8:e uppl.)Não informado. Professional Care Mother & Child. Professional, Managerial & Healthcare Publications, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.