@article{283386,
      author = {Greif, Geoffrey L. and Ephross, Paul H.},
      url = {http://library.usi.edu/record/283386},
      title = {Group work with populations at risk /},
      publisher = {Oxford University Press,},
      recid = {283386},
      pages = {xvi, 458 p. ;},
      address = {New York :},
      year = {2005},
}