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.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)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.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)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.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.