@article{73812,
      recid = {73812},
      author = {Friskey, Margaret, and Gehr, Mary,},
      title = {Three sides and the round one /},
      publisher = {Childrens Press},
      address = {Chicago,},
      pages = {17, [15] p. :},
      year = {1973},
      abstract = {A discussion between a circle and a triangle introduces  basic geometric shapes and suggests where they can be found  in common objects.},
      url = {http://library.usi.edu/record/73812},
}