public int Compare(Book x, Book y) { return(NumbersCompare.CompareNumbers(x.Year, y.Year)); }
public int Compare(Book x, Book y) { return(NumbersCompare.CompareNumbers(x.Price, y.Price)); }
public int Compare(Book x, Book y) { return(NumbersCompare.CompareNumbers(x.NumberOfPages, y.NumberOfPages)); }