Ferrer, J., & Whalley, E. (1990). Mosaic I: A listening speaking skills book (2nd ed.). New York: Mcgraw - Hill Pub.
استشهاد بنمط شيكاغوFerrer, Jami, و Elizabeth Whalley. Mosaic I: A Listening Speaking Skills Book. 2nd ed. New York: Mcgraw - Hill Pub, 1990.
MLA استشهادFerrer, Jami, و Elizabeth Whalley. Mosaic I: A Listening Speaking Skills Book. 2nd ed. New York: Mcgraw - Hill Pub, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.