Não informado. (1991). Professional care mother & child. Professional, Managerial & Healthcare Publications.
Chicago-viite (17. p.)Não informado. Professional Care Mother & Child. London: Professional, Managerial & Healthcare Publications, 1991.
MLA-viite (8. p.)Não informado. Professional Care Mother & Child. Professional, Managerial & Healthcare Publications, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.