Não informado. (1963). Hearing. Royal National Institute for the Deaf.
Style de citation Chicago (17e éd.)Não informado. Hearing. London: Royal National Institute for the Deaf, 1963.
Style de citation MLA (8e éd.)Não informado. Hearing. Royal National Institute for the Deaf, 1963.
Attention : ces citations peuvent ne pas être correctes à 100%.