Não informado. (2017). Hart's Petroleum Engineer International: The magazine of drilling and production technology, onshore, offshore, worldwide. Hart Publications.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Hart's Petroleum Engineer International: The Magazine of Drilling and Production Technology, Onshore, Offshore, Worldwide. Houston, Tex: Hart Publications, 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Hart's Petroleum Engineer International: The Magazine of Drilling and Production Technology, Onshore, Offshore, Worldwide. Hart Publications, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.