Organisation for Economic Co-operation and Development. (1969). Impact of Natural Gas on the Consumption of Energy: In the Oecd European Member Countries. Paris: O.E.C.D. Publications.
استشهاد بنمط شيكاغوOrganisation for Economic Co-operation and Development. Impact of Natural Gas On the Consumption of Energy: In the Oecd European Member Countries. Paris: O.E.C.D. Publications, 1969.
MLA استشهادOrganisation for Economic Co-operation and Development. Impact of Natural Gas On the Consumption of Energy: In the Oecd European Member Countries. Paris: O.E.C.D. Publications, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.