National Buildings Organisation (India). (1968). Fly ash and its application as a building material. National Buildings Organisation & UN Regional Housing Centre, ECAFE.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Buildings Organisation (India). Fly Ash and Its Application as a Building Material. New Delhi: National Buildings Organisation & UN Regional Housing Centre, ECAFE, 1968.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Buildings Organisation (India). Fly Ash and Its Application as a Building Material. National Buildings Organisation & UN Regional Housing Centre, ECAFE, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.