APA (7th ed.) Citation

Aguilera, R. F., & Ripple, R. (2012). Technological progress and the availability of European oil and gas resources. Elsevier.

Chicago Style (17th ed.) Citation

Aguilera, Roberto F., and Ronald Ripple. Technological Progress and the Availability of European Oil and Gas Resources. Elsevier, 2012.

MLA (9th ed.) Citation

Aguilera, Roberto F., and Ronald Ripple. Technological Progress and the Availability of European Oil and Gas Resources. Elsevier, 2012.

Warning: These citations may not always be 100% accurate.