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