Walker, E., Elsworth, S., & Lê Thành Tâm. (2004). New grammar practice for pre-intermediate students. Tp. Hồ Chí Minh: Trẻ.
Styl cytowania ChicagoWalker, Elaine, Steve Elsworth, i Lê Thành Tâm. New Grammar Practice for Pre-intermediate Students. Tp. Hồ Chí Minh: Trẻ, 2004.
Styl cytowania MLAWalker, Elaine, Steve Elsworth, i Lê Thành Tâm. New Grammar Practice for Pre-intermediate Students. Tp. Hồ Chí Minh: Trẻ, 2004.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..