Grant, D. (2005). Business focus: Elementary student's book. Oxford: Oxford University Press.
استشهاد بنمط شيكاغوGrant, David. Business Focus: Elementary Student's Book. Oxford: Oxford University Press, 2005.
MLA استشهادGrant, David. Business Focus: Elementary Student's Book. Oxford: Oxford University Press, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.