@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.} }