Jones, L. (2003). New progress to proficiency: Self-study Student's book. Đà Nẵng: Nxb Đà Nẵng.
استشهاد بنمط شيكاغوJones, Leo. New Progress to Proficiency: Self-study Student's Book. Đà Nẵng: Nxb Đà Nẵng, 2003.
MLA استشهادJones, Leo. New Progress to Proficiency: Self-study Student's Book. Đà Nẵng: Nxb Đà Nẵng, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.