توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)
Commission of the European Communities, ebrary, Inc, & Engelmann, C. (1985). Modern methods for the determination of non-metals in non-ferrous metals: Applications to particular systems of metallurgical importance. W. de Gruyter on behalf of the Commission of the European Communities.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)
Commission of the European Communities, Inc ebrary, و Ch Engelmann. Modern Methods for the Determination of Non-metals in Non-ferrous Metals: Applications to Particular Systems of Metallurgical Importance. Berlin ; New York: W. de Gruyter on behalf of the Commission of the European Communities, 1985.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)
Commission of the European Communities, et al. Modern Methods for the Determination of Non-metals in Non-ferrous Metals: Applications to Particular Systems of Metallurgical Importance. W. de Gruyter on behalf of the Commission of the European Communities, 1985.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.