Pendle, . G. (1970). South America (2nd ed.). University Press.
Chicago Style (17th ed.) ZitazioaPendle, George. South America. 2nd ed. London, Oxford: University Press, 1970.
MLA (9th ed.) ZitazioaPendle, George. South America. 2nd ed. University Press, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.