Baker, L. (1995). Primary mathematics with Polydron TM: Explore, create, understand. Northampton: Polydron International.
Stile di citazione ChicagoBaker, Lyndon. Primary Mathematics With Polydron TM: Explore, Create, Understand. Northampton: Polydron International, 1995.
Citazione MLABaker, Lyndon. Primary Mathematics With Polydron TM: Explore, Create, Understand. Northampton: Polydron International, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.