-, -. (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.
Chicago Style (17th ed.) Citation-, -. 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.
MLA (9th ed.) Citation-, -. 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.
Warning: These citations may not always be 100% accurate.