@article{490565,
      author = {Salkind, Charles T.,},
      url = {http://library.usi.edu/record/490565},
      title = {The contest problem book, I / [electronic resource] .},
      publisher = {Mathematical Association of America,},
      recid = {490565},
      pages = {154 p.  :},
      address = {Washington, D.C. :},
      year = {1961},
}