India. Central Board for the Prevention and Control of Water Pollution. (1979). Industrial survey, Union Territory of Delhi. Central Board for the Prevention and Control of Water Pollution.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)India. Central Board for the Prevention and Control of Water Pollution. Industrial Survey, Union Territory of Delhi. New Delhi, India: Central Board for the Prevention and Control of Water Pollution, 1979.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)India. Central Board for the Prevention and Control of Water Pollution. Industrial Survey, Union Territory of Delhi. Central Board for the Prevention and Control of Water Pollution, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.