Remembering Mets History (1973): Jerry Koosman Wins April NL

Remembering Mets History (1968) Jerry Koosman Sets NL Record With Seven Shut outs

Mets to Retire Jerry Koosman's Jersey - The New York Times

October 8, 1973: Harrelson, Rose square off as Mets win Game 3 in NLCS – Society for American Baseball Research

Jerry Koosman - Mets History

Mack's Mets: Mets Games Played On This Date: April 22

Jerry Koosman: All Time Mets Left Handed Pitcher (Part Two-1973-1978)

Remembering Mets History (1973) Mets Take 3 of 4 From Phillies- Koosman's Scoreless Streak Continues & Seaver Wins Sweet16

Mets Hall of Fame

Studious Metsimus: The Thrill of Victory, The Agony of the Mets: Jerry Koosman

Remembering Tom Seaver. As the month of August gave way to…, by Mitchell Plitnick