Zimmern, A. (1926). Third British empire being a course of lectures delivered at Columbia University.
استشهاد بنمط شيكاغوZimmern, Alfred. Third British Empire Being a Course of Lectures Delivered at Columbia University. 1926.
MLA استشهادZimmern, Alfred. Third British Empire Being a Course of Lectures Delivered at Columbia University. 1926.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.