49ers-Vikings recap: Niners return to early-season defensive dominance as they get healthier - Niners Nation
Minnesota Vikings By The Numbers: #72 - Daily Norseman
Reactions to Vikings Loss to Lions in Detroit
Vikings-Packers Series History: Games in Green Bay and Milwaukee - Acme Packing Company
1970 CBS Vikings & 49ers Season Recaps Playoff Pregame Audio - RECONSTRUCTED {REUPLOAD}
Vikings 1969 Championship Team
1977 Minnesota Vikings season - Wikipedia
The NFL, Year One: The 1970 Season and the Dawn of Modern Football by Dr. Brad Schultz Ph.D (2013-04-01): : Books
1970 NFL Season Recap — zmiller82 on Scorum
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1970 NFC Div Playoff 49ers at Vikings NFL GOW
Chicago Bears hire Kevin Warren, former Vikings COO, as team president - CBS Minnesota