Fries, C. C. (1974). Teaching and learning English as a foreign language (23. print.). Univ. of Michigan Press.
Chicago-Zitierstil (17. Ausg.)Fries, Charles Carpenter. Teaching and Learning English as a Foreign Language. 23. print. Ann Arbor: Univ. of Michigan Press, 1974.
MLA-Zitierstil (9. Ausg.)Fries, Charles Carpenter. Teaching and Learning English as a Foreign Language. 23. print. Univ. of Michigan Press, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.