Blass, . L., & Laurie Blass; Pamela Hartmann. (2007). Quest 1: Listening and speaking. Boston, MA: McGraw-Hill Higher Education.
Chicago Style CitationBlass, Laurie, i Laurie Blass; Pamela Hartmann. Quest 1: Listening and Speaking. Boston, MA: McGraw-Hill Higher Education, 2007.
Cita MLABlass, Laurie, i Laurie Blass; Pamela Hartmann. Quest 1: Listening and Speaking. Boston, MA: McGraw-Hill Higher Education, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.