Dòng Nội dung
1
East-West : student book 1 / Kathleen Graves and David P. Rein.
New York, N.Y. : Oxford University Press, 1988
3 v. : ill. ; 26 cm.



2
Est - West : teacher's guide 1 / Kathleen Graves, David P. Rein
London : Oxford University, 1988
143p. : ill ; 25cm