new, completely updated, revised and expanded 20th edition of this essential work coming February 2008 -- Order now and take advantage of our special prepublication price Oxford University Press and The National Association of Social Workers are proud to announce that a new, completely updated, revised and expanded 20th edition of this essential work will publish in February 2008. The 400 articles this 4-volume set cover all aspects of social work from practice and interventions, social environments, social conditions and challenges, to social policy and history. This new edition of the...