Gruber, V. D. &. D. (1987). Listening intermediate (disertai 2 kaset). Oxford University Press.
Chicago Style (17th ed.) CitationGruber, Viviane Dunn & Diann. Listening Intermediate (disertai 2 Kaset). Oxford University Press, 1987.
MLA (8th ed.) CitationGruber, Viviane Dunn & Diann. Listening Intermediate (disertai 2 Kaset). Oxford University Press, 1987.
Warning: These citations may not always be 100% accurate.