New York Yankees Retired Numbers - Sports Illustrated
Yankees Will Retire Numbers for Jorge Posada, Bernie Williams
ESPN - If future New York Yankees want a single-digit number, they
File:YankeeRetiredNumbers.jpg - Wikipedia
Zero single-digit numbers in the Bronx? Actually, there's still
List of Major League Baseball retired numbers - Wikipedia
New York Yankees Retired Number Lapel Pins
Who were the first and last Yankees players to wear the retired
How Paul O'Neill Stacks Up Against the Other Yankees With Retired