@article{35640,
      author = {Riker, William H.},
      url = {http://library.usi.edu/record/35640},
      title = {The theory of political coalitions.},
      publisher = {Yale University Press,},
      recid = {35640},
      pages = {300 p.},
      address = {New Haven,},
      year = {1962},
}