1.
Perspectives on the Teaching of Geometry for the 21st Century, Vol. 5
by Mammana, Carmelo, Villani, V.
ISBN: 9780792349914
List Price: $99.00
2.
Perspectives on the Teaching of Geometry for the 21st Century An Icmi Study
by Mammana, Carmelo, Villani, ...
ISBN: 9780792349907
List Price: $179.00