Dòng Nội dung
1
Listening : Intermediate / Viviane Dunn, Diann Gruber.
Oxford : Oxford University Press, 1987.
viii,64p. : ill., maps, forms ; 25 cm.
2
Writing. Elementary / Diann Gruber; Viviane Dunn; Christyan Jones.
Oxford [etc.] : Oxford university press, 1994.
VI, 58 str. : ilustr. ; 25 cm.