@phdthesis{discovery10019632,
            year = {1987},
          school = {Institute of Education, University of London},
            note = {Thesis: (MPhil) University of London Institute of Education,1987.},
           title = {An investigation into children's acquisition of the notion of place-value},
             url = {https://discovery-pp.ucl.ac.uk/id/eprint/10019632/},
          author = {Jones, Gillian Wendy.}
}