Libbish, B. e. (1964). Advances in the teaching of modern languages. Pergamon Press.
Dyfyniad Arddull ChicagoLibbish, B. ed. Advances in the Teaching of Modern Languages. Oxford: Pergamon Press, 1964.
Dyfyniad MLALibbish, B. ed. Advances in the Teaching of Modern Languages. Pergamon Press, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.