Dyfyniad APA
Cowie, R., & Douglas-Cowie, E. (1992). Postlingually acquired deafness: Speech deterioration and the wider consequences. Mouton de Gruyter.
Dyfyniad Arddull Chicago
Cowie, Roddy, and Ellen Douglas-Cowie. Postlingually Acquired Deafness: Speech Deterioration and the Wider Consequences. Berlin ; New York: Mouton de Gruyter, 1992.
Dyfyniad MLA
Cowie, Roddy, and Ellen Douglas-Cowie. Postlingually Acquired Deafness: Speech Deterioration and the Wider Consequences. Mouton de Gruyter, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.