@article{62611,
      author = {Page, David A.,},
      url = {http://library.usi.edu/record/62611},
      title = {Number lines, functions, and fundamental topics;  mathematics for elementary school teachers},
      publisher = {Macmillan},
      recid = {62611},
      pages = {ix, 283 p.},
      address = {New York,},
      year = {1964},
}