Harrison, M. (2002). New proficiency testbuilder: New tests that teach. Macmillan Publishers Limited.
Dyfyniad Arddull ChicagoHarrison, Mark. New Proficiency Testbuilder: New Tests That Teach. Macmillan Publishers Limited, 2002.
Dyfyniad MLAHarrison, Mark. New Proficiency Testbuilder: New Tests That Teach. Macmillan Publishers Limited, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.