Charles C Fries. (1966). Teaching and learning English as a foreign language. Ann Arbor: Univ. of Michigan Press.
استشهاد بنمط شيكاغوCharles C Fries. Teaching and Learning English As a Foreign Language. Ann Arbor: Univ. of Michigan Press, 1966.
MLA استشهادCharles C Fries. Teaching and Learning English As a Foreign Language. Ann Arbor: Univ. of Michigan Press, 1966.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.