TY - BOOK AU - Greif, Geoffrey L., AU - Knight, Carolyn, TI - Group work with populations at risk SN - 9780190212124 (alk. paper) U1 - 361.4 23 PY - 2017///] CY - Oxford, New York PB - Oxford University Press KW - Social group work KW - Marginality, Social N1 - Includes bibliographical references and index ER -