APA (7th ed.) Citation

Wilczynski, H., & Ashraf, M. (2011). Unconventional gas's global potential. Petroleum Economist, 78(7), 6.

Chicago Style (17th ed.) Citation

Wilczynski, Herve, and Muqsit Ashraf. "Unconventional Gas's Global Potential." Petroleum Economist 78, no. 7 (2011): 6.

MLA (9th ed.) Citation

Wilczynski, Herve, and Muqsit Ashraf. "Unconventional Gas's Global Potential." Petroleum Economist, vol. 78, no. 7, 2011, p. 6.