Fries, C. C. (1980). Teaching & learning English as a foreign language (25. print.). Univ. of Michigan Press.
Chicago-Zitierstil (17. Ausg.)Fries, Charles Carpenter. Teaching & Learning English as a Foreign Language. 25. print. Ann Arbor: Univ. of Michigan Press, 1980.
MLA-Zitierstil (9. Ausg.)Fries, Charles Carpenter. Teaching & Learning English as a Foreign Language. 25. print. Univ. of Michigan Press, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.