Powell, Walter W. Authors > Walter Powell The Nonprofit Sector A Research HandbookSecond Edition Edited by Walter W. Powell and Richard Steinberg 11/01/2006, Cloth $65.00 | ISBN: 9780300109030 Private Action and the Public Good Edited by Walter W. Powell and Elisabeth S. Clemens 03/30/1998, Cloth $64.00 | ISBN: 9780300064490