Al-Shafei, M. A., & unknown. (1990). High temperature ceramic superconductors: Oxalate co-precipitation procedure for synthesis and influence of compositional variations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al-Shafei, Mansour Ahmed, و unknown. High Temperature Ceramic Superconductors: Oxalate Co-precipitation Procedure for Synthesis and Influence of Compositional Variations. 1990.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Al-Shafei, Mansour Ahmed, و unknown. High Temperature Ceramic Superconductors: Oxalate Co-precipitation Procedure for Synthesis and Influence of Compositional Variations. 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.