//using System.Globalization;
CultureInfo ci = new CultureInfo("it-it");
//CultureInfo ci = new CultureInfo(1033); // en-us
for (int i = 1; i <= 12; i++)
{
Console.WriteLine(string.Format("Mese: {0} = {1}"
, new DateTime(2008,i, 1).ToString("MMMM", ci)
, i.ToString()
)
);
}