Oxford student's dictionary for learners using English to study other subjects. Oxford: Oxford University Press.
Dyfyniad Arddull ChicagoOxford Student's Dictionary for Learners Using English to Study Other Subjects. Oxford: Oxford University Press.
Dyfyniad MLAOxford Student's Dictionary for Learners Using English to Study Other Subjects. Oxford: Oxford University Press.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.