Schlumberger Limited. (1997). The making of oil: Plankton to production. Schlumberger Limited.
Cita Chicago Style (17a ed.)Schlumberger Limited. The Making of Oil: Plankton to Production. New York: Schlumberger Limited, 1997.
Cita MLA (9a ed.)Schlumberger Limited. The Making of Oil: Plankton to Production. Schlumberger Limited, 1997.
Precaución: Estas citas no son 100% exactas.