Kneer, Marian E. Softball / by Marian E. Kneer, Charles L. McCord; Illus. by E. Jane Beals. - Dubuque, Iowa : W. C. Brown Co., 1966. - vi, 73 p. : illus. ; 23 cm. - Brown physical education activities series . Bibliography: p. 71. ISBN: 0-697-07026-3 Subjects--Topical Terms: Softball