(2004). Undersstanding spoken english: Book two. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh.
Chicago ZitierstilUndersstanding Spoken English: Book Two. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh, 2004.
MLA ZitierstilUndersstanding Spoken English: Book Two. Tp. Hồ Chí Minh: Nxb. Tp. Hồ Chí Minh, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.