-, -. (1981). Anthony Sampson, The Seven Sisters. The great oil companies and the world they made. London, Hodder and Stoughton, 1975, pp. 334. El Colegio de México.
Cita Chicago Style (17a ed.)-, -. Anthony Sampson, The Seven Sisters. The Great Oil Companies and the World They Made. London, Hodder and Stoughton, 1975, Pp. 334. El Colegio de México, 1981.
Cita MLA (9a ed.)-, -. Anthony Sampson, The Seven Sisters. The Great Oil Companies and the World They Made. London, Hodder and Stoughton, 1975, Pp. 334. El Colegio de México, 1981.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.