@article{364233,
      recid = {364233},
      author = {Thompson, Ian},
      title = {Teaching and learning early number [electronic resource]  /},
      publisher = {Open University Press,},
      address = {Maidenhead, England ;},
      pages = {xvii, 232 p.},
      year = {2008},
      note = {Previous ed.: 1997.},
      url = {http://library.usi.edu/record/364233},
}