@article{383243,
      recid = {383243},
      author = {Medina Sierra, Luis Fernando,},
      title = {A unified theory of collective action and social change  [electronic resource] /},
      publisher = {University of Michigan Press,},
      address = {Ann Arbor :},
      pages = {xxiv, 278 p. :},
      year = {2007},
      url = {http://library.usi.edu/record/383243},
}