Baldwin R. Rick & Heitler D. David. (1996). Creating Opportunities: Activity Book. Oxford, Oxford University Press, 1996.
Dyfyniad Arddull ChicagoBaldwin R. Rick and Heitler D. David. Creating Opportunities: Activity Book. Oxford, Oxford University Press, 1996, 1996.
Dyfyniad MLABaldwin R. Rick and Heitler D. David. Creating Opportunities: Activity Book. Oxford, Oxford University Press, 1996, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.