Fogel, R. W., & Engerman, S. (1974). Time in the cross. The economics of American negro slavery. Boston, Massachussetts, Estados Unidos: Little, Brown and Company.
Chicago Style CitationFogel, Robert William, and Stanley Engerman. Time in the Cross. The Economics of American Negro Slavery. Boston, Massachussetts, Estados Unidos: Little, Brown and Company, 1974.
MLA CitationFogel, Robert William, and Stanley Engerman. Time in the Cross. The Economics of American Negro Slavery. Boston, Massachussetts, Estados Unidos: Little, Brown and Company, 1974.
Warning: These citations may not always be 100% accurate.