APA استشهاد

Fox, K. A., & Johnson, D. G. (1969). Reading in the economics of agriculture. George Allen & Unwin.

استشهاد بنمط شيكاغو

Fox, Karl A., و D. Gale Johnson. Reading in the Economics of Agriculture. London: George Allen & Unwin, 1969.

MLA استشهاد

Fox, Karl A., و D. Gale Johnson. Reading in the Economics of Agriculture. George Allen & Unwin, 1969.