TY  - BOOK
AU  - Wilder, Sue Johnston   
AU  - Mason, John 
TI  - Developing thinking in geometry
SN  - 1412911680
U1  - DC 516 2005
PY  - 2005///
CY  - London
PB  - The Open University
KW  - Geometry
N1  - Includes bibliographical references and index
ER  -