An oral approach / H. BongersTalenpracticum-editie / H. BongersAn oral approach / H. BongersTalenpracticum-oefeningen / H. BongersAn oral approach / H. BongersTalenpracticum-editie / H. BongersIbero-American and Caribbean linguistics / assoc. ed.: Robert Lado ... [et al.]Scientific and humanistic dimensions of language : Festschrift for Robert Lado, on the occasion of his 70th birthday on May 31, 1985 / ed. by Kurt R. Jankowsky