@article{116884,
      note = {Includes index.},
      author = {Chen, Steven.},
      url = {http://library.usi.edu/record/116884},
      title = {Programmer's challenge : 50 challenging problems to test  your programming skills--with solutions in BASIC, Pascal,  and C /},
      publisher = {TAB Books,},
      recid = {116884},
      pages = {x, 464 p. ;},
      address = {Blue Ridge Summit, PA :},
      year = {1987},
}