public static void Delete(PaperType paperType, int id)
{
switch (paperType)
{
case PaperType.Book:
BookStorage.DeleteById(id);
break;
case PaperType.Jornal:
JornalStorage.DeleteById(id);
break;
case PaperType.NewsPaper:
NewsPaperStorage.DeleteById(id);
break;
}
}