public SheetRangeIdentifier(String bookName, NameIdentifier firstSheetIdentifier, NameIdentifier lastSheetIdentifier) {super(bookName, firstSheetIdentifier);_lastSheetIdentifier = lastSheetIdentifier;}

public SheetRangeIdentifier(String bookName, NameIdentifier firstSheetIdentifier, NameIdentifier lastSheetIdentifier): base(bookName, firstSheetIdentifier){_lastSheetIdentifier = lastSheetIdentifier;}
