Text ( visual ) : unmediated Testing for language teachers / Arthur Hughes. -- : hard ; : pbk. -- Cambridge [Cambridgeshire] ; New York : Cambridge University Press , 1989. -- ix, 172 p. : ill. ; 24 cm. -- (Cambridge handbooks for language teachers / general editor, Michael Swan). -- Bibliography: p. 166-169 ; Includes further readings and index. -- ISBN 0521252644 ; 0521272602 ; (BA07730424) ; https://ci.nii.ac.jp/ncid/BA07730424 Author Heading(s): Hughes, Arthur. -- Classification(s): LCC : P53.4 ; DC19 : 407.6 ; NDC8 : 807. -- Subject Heading(s): LCSH : Language and languages -- Ability testing