@article{9412,
      author = {Kahn, Alfred J.,},
      url = {http://library.usi.edu/record/9412},
      title = {Social services in international perspective : the  emergence of the sixth system /},
      publisher = {U.S. Dept. of Health, Education, and Welfare, ...},
      recid = {9412},
      pages = {xiv, 411 p. ;},
      address = {[Washington] :},
      year = {1977},
}