PTU (Pardon The Unemployment): Top 5 Worst Uniforms Pittsburgh pirates baseball, Pirates baseball, Baseball uniforms
How did the Pittsburgh Pirates get their name?
Ranking MLB's all-time greatest uniforms - ESPN
Those wacky baseball uniforms of the '70s.
How the Pittsburgh Pirates sparked a uniform revolution in the 1970s - ESPN
All-Time Single-Season Team: Pittsburgh Pirates
Uniform designs broke all the rules during 1970s
How the Pittsburgh Pirates sparked a uniform revolution in the 1970s - ESPN
The Team That Changed Baseball: Roberto Clemente and the 1971 Pittsburgh Pirates: Markusen, Bruce: 9781594160899: : Books
50 Years Later, the Pirates' Lineup of Color Still Resonates - The New York Times
Uniforms and Logos Pittsburgh Pirates
Best Pirates players by uniform number