India. Ministry of energy. Department of coal. (1981). Committee on public undertakings (1981-82): Thirtieth report. Lok Sabha.
シカゴスタイル引用形India. Ministry of energy. Department of coal. Committee on Public Undertakings (1981-82): Thirtieth Report. New Delhi: Lok Sabha, 1981.
MLA引用形式India. Ministry of energy. Department of coal. Committee on Public Undertakings (1981-82): Thirtieth Report. Lok Sabha, 1981.
警告: この引用は必ずしも正確ではありません.