Hartmann, P. (2000). Quest: Listening and Speaking in the Academic Work-Book 1 (Có sách). Boston: Mc GrawHill.
Chicago ZitierstilHartmann, Pamela. Quest: Listening and Speaking in the Academic Work-Book 1 (Có Sách). Boston: Mc GrawHill, 2000.
MLA ZitierstilHartmann, Pamela. Quest: Listening and Speaking in the Academic Work-Book 1 (Có Sách). Boston: Mc GrawHill, 2000.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.