Woodbridge, H., & Hutchinson Woodbridge. (1997). Lifelines: Intermediate (Teacher's book). Oxford: Oxford University Press.
استشهاد بنمط شيكاغوWoodbridge, Hutchinson, و Hutchinson Woodbridge. Lifelines: Intermediate (Teacher's Book). Oxford: Oxford University Press, 1997.
MLA استشهادWoodbridge, Hutchinson, و Hutchinson Woodbridge. Lifelines: Intermediate (Teacher's Book). Oxford: Oxford University Press, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.