Report of working group on coal and lignite for the eighth five year plan 1990-95 - India. Ministry of Energy. Department of Coal (New Delhi Ministry of Energy, 1996)
Keywords: Coal-India-History-1990-1995; Coal mines and mining-India-History-1990-1995; Lignite-India-History-1990-1995; Lignite industry-India-History-1990-1995; Coal trade-India-History-1990-1995