Rockland, M. A. (1970). Sarmiento's Travels in the U.S. in 1847. Princeton University Press.
Cita Chicago Style (17a ed.)Rockland, Michael Aaron. Sarmiento's Travels in the U.S. in 1847. Princeton, New Jersey: Princeton University Press, 1970.
Cita MLA (8a ed.)Rockland, Michael Aaron. Sarmiento's Travels in the U.S. in 1847. Princeton University Press, 1970.
Precaución: Estas citas no son 100% exactas.