@article{72197,
      note = {Papers presented at a symposium sponsored by the American  Association for the Advancement of Science, held in Boston  on Dec. 26-27, 1969.},
      author = {Sagan, Carl, and Page, Thornton},
      url = {http://library.usi.edu/record/72197},
      title = {UFO's--a scientific debate.},
      publisher = {Cornell University Press},
      recid = {72197},
      pages = {xxxi, 310 p.},
      address = {Ithaca [N.Y.]},
      year = {1972},
}