Fox, K. A., & Johnson, D. G. (1969). Reading in the economics of agriculture. George Allen & Unwin.
Chicago Edition CitationFox, Karl A., i D. Gale Johnson. Reading in the Economics of Agriculture. London: George Allen & Unwin, 1969.
Cita MLAFox, Karl A., i D. Gale Johnson. Reading in the Economics of Agriculture. George Allen & Unwin, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.