Softball umpires manual
By: prepared under direction of National A.S.A. umpires staff ; edited by Tom Mason.
Contributors: Mason, Tom, 1931-; Amateur Softball Association of America.
Edition: 4th ed.
Publisher: Amateur Softball Association
Published: 1977
Place of publication: Oklahoma City
Language: eng
Number of pages: 65
Subjects: Softball -- Umpiring.; Softball -- Rules.
Other titles: Umpiring.
Notes: Cover title: Umpiring.