APA استشهاد

Hart , B. . H. . L. Why Don't we learn from history ? George Allen & unwin.

استشهاد بنمط شيكاغو

Hart , B H Liddel. Why Don't We Learn from History ? London: George Allen & unwin.

MLA استشهاد

Hart , B H Liddel. Why Don't We Learn from History ? George Allen & unwin.