Books
1886 Constitution and Playing Rules of the National League of Professional Base Ball Clubs
2012
1920 Constitution and Playing Rules of the National League of Professional Base Ball Clubs
2012
1912 Constitution and Playing Rules of the National League of Professional Base Ball Clubs
2012
1914 Constitution and Playing Rules of the National League of Professional Base Ball Clubs
2012
1921 Constitution and Playing Rules of the National League of Professional Base Ball Clubs
2012
1911 Constitution and Playing Rules of the National League of Professional Base Ball Clubs
2012