Ferrer, J., & Whalley, E. (1990). Mosaic I: A listening speaking skills book (2nd ed.). New York: Mcgraw - Hill Pub.
Chicago-стиль цитированияFerrer, Jami, và Elizabeth Whalley. Mosaic I: A Listening Speaking Skills Book. 2nd ed. New York: Mcgraw - Hill Pub, 1990.
MLA-цитированиеFerrer, Jami, và Elizabeth Whalley. Mosaic I: A Listening Speaking Skills Book. 2nd ed. New York: Mcgraw - Hill Pub, 1990.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.