Murphy, R., & Raymond Murphy. (2009). Essential Grammar in Use: Self-study reference and practice book for elementary students of English. Hà Nội: Lao động.
استشهاد بنمط شيكاغوMurphy, Raymond, و Raymond Murphy. Essential Grammar in Use: Self-study Reference and Practice Book for Elementary Students of English. Hà Nội: Lao động, 2009.
MLA استشهادMurphy, Raymond, و Raymond Murphy. Essential Grammar in Use: Self-study Reference and Practice Book for Elementary Students of English. Hà Nội: Lao động, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.