A chronology of the changes in major league baseball pitching rules.

Bibliographic Details
Main Author:	Becker, Charles Porter
Format:	Thesis Book
Language:	English
Published:	Sacramento, Calif. : Becker, 1971.
Subjects:	Pitching (Baseball) Baseball > Rules > History.

Description
Item Description:	Microfiche (negative) of typescript. Eugene : Microform Publications, College of Health, Physical Education and Recreation, University of Oregon, 1974. -- 2 sheets ; 10.5 x 14.8 cm. Microform.
Physical Description:	172 leaves ; 29 cm.
Bibliography:	Bibliography: leaves [160]-167.