Baseball & Softball in 1991

Elias Baseball Analyst, 1991 by Siwoff, Seymour

Nolan Ryan's Pitcher's Bible: The Ultimate Guide to Power, Precision, and Long-Term Performance by Ryan, Nolan, House, Tom

The Baseball Business: Pursuing Pennants and Profits in Baltimore by Miller, James Edward

Baseball: The People's Gamethe People's Game by Seymour Mills, Dorothy, Seymour, Harold

The Baseball Research Journal (Brj), Volume 20 by Society for American Baseball Research (Sabr)