Wan Zuhairi Wan Yaacob. (2000). An investigation of the attenuation characteristics of natural clay soils in South Wales and potential use as engineered clay liner. Cardiff University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wan Zuhairi Wan Yaacob. An Investigation of the Attenuation Characteristics of Natural Clay Soils in South Wales and Potential Use as Engineered Clay Liner. Wales: Cardiff University, 2000.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Wan Zuhairi Wan Yaacob. An Investigation of the Attenuation Characteristics of Natural Clay Soils in South Wales and Potential Use as Engineered Clay Liner. Cardiff University, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.