SECOND LANGUAGE & BIRDSONG, D. [. (1999). Second language acquisition and the critical period hypothesis/edited David Birdsong. Lawrence Erlbaum Associates.
Dyfyniad Arddull ChicagoSECOND LANGUAGE and David [ed.] BIRDSONG. Second Language Acquisition and the Critical Period Hypothesis/edited David Birdsong. New Jersey: Lawrence Erlbaum Associates, 1999.
Dyfyniad MLASECOND LANGUAGE and David [ed.] BIRDSONG. Second Language Acquisition and the Critical Period Hypothesis/edited David Birdsong. Lawrence Erlbaum Associates, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.