Philpot, S. (2011). Headway academic skills: Reading, writing, and study skills (student's book). Oxford: Oxford Univ. Press.
استشهاد بنمط شيكاغوPhilpot, Sarah. Headway Academic Skills: Reading, Writing, and Study Skills (student's Book). Oxford: Oxford Univ. Press, 2011.
MLA استشهادPhilpot, Sarah. Headway Academic Skills: Reading, Writing, and Study Skills (student's Book). Oxford: Oxford Univ. Press, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.