Não informado. (1963). Hearing. Royal National Institute for the Deaf.
Chicagoスタイル(17版)引用形式Não informado. Hearing. London: Royal National Institute for the Deaf, 1963.
MLA(8版)引用形式Não informado. Hearing. Royal National Institute for the Deaf, 1963.
警告: この引用は必ずしも正確ではありません.