Tyrrell Jerry Peer mediation : a process for primary schools / Jerry Tyrrell ; editor Marian Liebmann. - London : Souvenir, 2002. - 317 p. : ill. ; 22 cm. Includes bibliographical references ISBN: 0285636014 Subjects--Topical Terms: MediationEducation Elementary LC Class. No.: LB3092 Dewey Class. No.: 372.159