Baseball teams - United States.

Baseball / by: (Language materials, printed)

American league franchises = team performances inspire business success / by: (Electronic resources)

American League of Professional Baseball Clubs.

Sports facilities- Economic aspects- United States.

Economics.

Economic Policy.

Economic Growth.

Major League Baseball (Organization)- History.

Sports Economics.

Baseball teams- United States.

Baseball- History.- United States

Baseball- Economic aspects- United States