Jack C Richards. (1999). Longman dictionary of language teaching and applied linguistics. Essex: Longman.
Dyfyniad Arddull ChicagoJack C Richards. Longman Dictionary of Language Teaching and Applied Linguistics. Essex: Longman, 1999.
Dyfyniad MLAJack C Richards. Longman Dictionary of Language Teaching and Applied Linguistics. Essex: Longman, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.