LB Jeff Siemen and Center Jim Langer in Mankato Training Camp 1980
Jim Langer - South Dakota State University Athletics
Tingelhoff audibles on Hall of Fame speech - Duluth News Tribune
Former Minnesota Vikings Center Mick Tingelhoff Named Hall of Fame
Sid Hartman: Tingelhoff deserved Hall of Fame honor decades ago
Jim Langer, ex-Dolphins Hall of Fame center, dies at 71 - The
Jim Langer, Hall of Fame center for Dolphins and Vikings, dies at
Jim Langer Through the Years
1991 Enor Pro Football Hall of Fame Jim Langer #82 CAS Certified
Jim Langer: Miami Dolphins Hall of Famer dies aged 71 - BBC Sport
Jim Langer Autographed 1994 Goal Line Art Card #164 Miami Dolphins