Royals break out Kansas City Monarchs throwback uniforms – SportsLogos.Net News
Ranking MLB's City Connect uniforms - ESPN
Salute to the Negro Leagues, Specials, Tickets
Kansas City Royals Negro League Uniform — UNISWAG
NEGRO LEAGUES – Ebbets Field Flannels
Royals, Cards to Honour Negro Leagues with Throwback Uniforms – SportsLogos.Net News
M.L.B. Goes Black and White in Search of Green - The New York Times
Throwback uniform - Wikipedia
Royals, Cards Wear Excellent Negro Leagues Throwbacks
Best MLB Uniforms: The 18 Greatest That Don't Exist Anymore
Royals, Astros to Salute the Negro Leagues this Weekend in Kansas City – SportsLogos.Net News