Nation, I. S. P. (2001). Learning vocabulary in another language. Cambridge: Cambridge University.
Dyfyniad Arddull ChicagoNation, I. S. P. Learning Vocabulary in Another Language. Cambridge: Cambridge University, 2001.
Dyfyniad MLANation, I. S. P. Learning Vocabulary in Another Language. Cambridge: Cambridge University, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.