Carter, P. &. R. (2016). logic Brainteasers. Seven Oaks.
Dyfyniad Arddull ChicagoCarter, Philip & Russell. Logic Brainteasers. London: Seven Oaks, 2016.
Dyfyniad MLACarter, Philip & Russell. Logic Brainteasers. Seven Oaks, 2016.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.