@article{73619,
      author = {Siemon, Frederick,},
      url = {http://library.usi.edu/record/73619},
      title = {Science fiction story index, 1950-1968.},
      publisher = {American Library Association,},
      recid = {73619},
      pages = {x, 274 p.},
      address = {Chicago,},
      year = {1971},
}