BALLARD, C. (2001). HOW DO WE THINK (1st.). HODDER CHILDREN'S BOOKS.
Dyfyniad Arddull ChicagoBALLARD, CAROL. HOW DO WE THINK. 1st. LONDON: HODDER CHILDREN'S BOOKS, 2001.
Dyfyniad MLABALLARD, CAROL. HOW DO WE THINK. 1st. HODDER CHILDREN'S BOOKS, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.