Johnson, Maggie 1955- The selective mutism : resource manual / Maggie Johnson and Alison Wintgens - Second edition - London : New York : Routledge, c2017 - xvi, 337 pages : illustrations ISBN: 9781909301337 Subjects--Topical Terms: Selective mutismMutism, Selective LC Class. No.: RJ506.M87 / JOH 2017