@article{490570,
      recid = {490570},
      author = {Artino, Ralph A., and Gaglione, Anthony M. and Shell,  Niel.},
      title = {The contest problem book, IV / [electronic resource] .},
      publisher = {Mathematical Association of America,},
      address = {Washington, D.C. :},
      pages = {xiv, 184 p. :},
      year = {1982},
      url = {http://library.usi.edu/record/490570},
}