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Box Score of Game played on Saturday, June 23, 1984 at Wrigley Field
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Cubs historical sleuthing: A moment in time from 1989 - Bleed Cubbie Blue
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On This Day in Cubs History: Rick Sutcliffe Wins Cy Young - Sports Illustrated Inside The Cubs
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1984 National League Championship Series - Wikipedia
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October 7, 1984: Padres come from behind again to beat Cubs, secure first World Series berth – Society for American Baseball Research
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Cubs clinch 1984 NL East, 09/24/1984
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August 24, 1918: Cubs clinch fifth National League pennant in 13 years with doubleheader sweep – Society for American Baseball Research
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Cubs VS Pirates Sept 24 1984 NL East Clincher
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Who was the greatest Cubs second baseman?
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This Day in Chicago Cubs History: Clinch Postseason Berth for the First Time Since World War II - Sports Illustrated Inside The Cubs
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Rick Sutcliffe, 1984 Cubs' ace, took on a Brave new world and had a grand old time - Chicago Sun-Times
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Wrigley Wax: 1986 Unocal Cubs Set
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Cubs historical sleuthing: Merry Christmas! - Bleed Cubbie Blue