1972 Miami Dolphins Undefeated Team
President Obama invites perfect '72 Miami Dolphins for White House ceremony – New York Daily News
1972 Miami Dolphins Team Signed Undefeated Season Reunion Jersey., Lot #43243
Seventeen and Oh: Miami, 1972, and the NFL's Only Perfect Season by Marshall Jon Fisher
1972 Miami Dolphins honored at White House - Los Angeles Times
Undefeated '72 Dolphins get White House invite - Sports Illustrated
72 Dolphins' status as only perfect team may end in Valley, Sports
1972 Miami Dolphins' 50-year anniversary: Five interesting facts about the NFL's only perfect season
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
Undefeated 1972 Dolphins finally visit White House