Cita APA (7th ed.)

Nicol, P., Rhodes, B., & Crouch, A. (2004). The value of oil and gas reserves. Oxford Institute for Energy Studies.

Cita Chicago (17th ed.)

Nicol, P., B. Rhodes, i A. Crouch. The Value of Oil and Gas Reserves. Oxford Institute for Energy Studies, 2004.

Cita MLA (9th ed.)

Nicol, P., et al. The Value of Oil and Gas Reserves. Oxford Institute for Energy Studies, 2004.