Crawford, O. G. S. (1921). Man and his past. London: H. Milford, Oxford University Press.
استشهاد بنمط شيكاغوCrawford, Osbert Guy Stanhope. Man and His Past. London: H. Milford, Oxford University Press, 1921.
MLA استشهادCrawford, Osbert Guy Stanhope. Man and His Past. London: H. Milford, Oxford University Press, 1921.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.