Siddiqui, M. N., Ali, M. F., & unknown. (1999). Investigation of Chemical Transformations by NMR and GPC During the Laboratory Aging of Arabian asphalts.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Siddiqui, Mohammad Nahid, Mohammad F. Ali, و unknown. Investigation of Chemical Transformations by NMR and GPC During the Laboratory Aging of Arabian Asphalts. 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Siddiqui, Mohammad Nahid, et al. Investigation of Chemical Transformations by NMR and GPC During the Laboratory Aging of Arabian Asphalts. 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.