Não informado. (1991). Professional care mother & child. Professional, Managerial & Healthcare Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Professional Care Mother & Child. London: Professional, Managerial & Healthcare Publications, 1991.
Lua MLA (8ú heag.)Não informado. Professional Care Mother & Child. Professional, Managerial & Healthcare Publications, 1991.
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