Ann Baker. (2009). Ship or Sheep?: An intermidiate pronunciation course. Hà Nội: Lao động.
Dyfyniad Arddull ChicagoAnn Baker. Ship or Sheep?: An Intermidiate Pronunciation Course. Hà Nội: Lao động, 2009.
Dyfyniad MLAAnn Baker. Ship or Sheep?: An Intermidiate Pronunciation Course. Hà Nội: Lao động, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.