Coloroso, Barbara. The bully, the bullied and the bystander : From pre-school to high school : how parents and teachers can help break the cycle of violence / Barbara Coloroso. - Toronto : HarperCollins, 2002. - xxii, 217 p. ; 24 cm. Includes bibliographical references and index. ISBN: 0002006480 (bound) : $34.95 9780002006484 (bound) 0006394205 (pbk.) : $19.95 9780006394204 (pbk.) Nat. Bib. Agency Control No.: 20029036704 Subjects--Topical Terms: Bullying.Bullying--Prevention.IntimidaciónIntimidación--Prevencion LC Class. No.: BF 637 / C719b 2002 Dewey Class. No.: 371.5/8