Cita APA (7th ed.)

De Haan, H. (1995). New developments improved oil recovery. The Geological Society.

Cita Chicago (17th ed.)

De Haan, H.J. New Developments Improved Oil Recovery. London: The Geological Society, 1995.

Cita MLA (9th ed.)

De Haan, H.J. New Developments Improved Oil Recovery. The Geological Society, 1995.