Brown, J. D. (2001). Using surveys in language programs. Cambridge University Press.
Dyfyniad Arddull ChicagoBrown, James Dean. Using Surveys in Language Programs. Cambridge, Eng: Cambridge University Press, 2001.
Dyfyniad MLABrown, James Dean. Using Surveys in Language Programs. Cambridge University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.