@article{473741,
      author = {Jessup, Paul F. and Upson, Roger B.},
      url = {http://library.usi.edu/record/473741},
      title = {Returns in over-the-counter stock markets/},
      publisher = {University of Minnesota Press,},
      recid = {473741},
      pages = {ix, 109 p. :},
      address = {Minneapolis :},
      year = {1973},
}