Hockeycentral, Penguins, History
This Day In Hockey History-June 2, 2013-Boston Bruins Pittsburgh
HbD Breakdown: 2019 Winter Classic Jerseys
Bruins reveal 2019 Winter Classic jerseys
Bruins, Penguins reveal jerseys for 2023 NHL Winter Classic – NBC
Sabres unveil jerseys for 2018 Winter Classic
Pittsburgh Penguins Jerseys Ranked - PensBurgh
Penguins reveal throwback jerseys for 2023 Winter Classic
Where Detroit Red Wings' new retro jerseys rank among NHL teams
Uniform History Pittsburgh Penguins
The Ultimate Winter Classic Jersey Power Rankings - Article - Bardown