Petrovich, B. (2014). European gas hubs price correlation – barriers to convergence. Oxford Institute for Energy Studies.
芝加哥风格引文Petrovich, B. European Gas Hubs Price Correlation – Barriers to Convergence. Oxford Institute for Energy Studies, 2014.
MLA引文Petrovich, B. European Gas Hubs Price Correlation – Barriers to Convergence. Oxford Institute for Energy Studies, 2014.
警告：这些引文格式不一定是100％准确.