APA استشهاد

Johnson, H. G. (1967). Economic policies towards less developed countries. George Allen and unwin.

استشهاد بنمط شيكاغو

Johnson, Harry G. Economic Policies Towards Less Developed Countries. London: George Allen and unwin, 1967.

MLA استشهاد

Johnson, Harry G. Economic Policies Towards Less Developed Countries. George Allen and unwin, 1967.