Não informado. (2008). Essential Teacher. Teachers of English to Speakers of Other Languages.
Chicago-Zitierstil (17. Ausg.)Não informado. Essential Teacher. Alexandria, Va: Teachers of English to Speakers of Other Languages, 2008.
MLA-Zitierstil (8. Ausg.)Não informado. Essential Teacher. Teachers of English to Speakers of Other Languages, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.