@article{427582,
      recid = {427582},
      author = {Thernstrom, Stephan.},
      title = {Poverty and progress; social mobility in a nineteenth  century city.},
      publisher = {Harvard University Press,},
      address = {Cambridge,},
      pages = {xii, 286 p.},
      year = {1964},
      url = {http://library.usi.edu/record/427582},
}