Potter, Tessa. A jumper for Grumper / [written by Tessa Potter] ; [illustrated by David Parkins]. - Cambridge : Cambridge University Press, 1985. - [16]p. : col.ill. ; 21cm. - Read along stories ; 24 Cambridge books for children . - Read along stories ; 24 . Cover title. ISBN: 0521273544 (pbk) : Nat. Bib. No.: GB8611883 Subjects--Topical Terms: Readers--1950-.