@article{54891,
      author = {Simpson, George Gaylord,},
      url = {http://library.usi.edu/record/54891},
      title = {Horses; the story of the horse family in the modern world  and through sixty million years of history.},
      publisher = {Oxford University Press,},
      recid = {54891},
      pages = {xxiv, 247 p.},
      address = {New York,},
      year = {1951},
}