India. Ministry of Petroleum, Chemicals & Fertilizers. Department of Petroleum. (1981). Committee on public undertakings (1981-82): Forty-seventh report on oil companies - imports of petroleum crude and products and distribution of gas. Lok Sabha.
शिकागो स्टाइल उद्धरणIndia. Ministry of Petroleum, Chemicals & Fertilizers. Department of Petroleum. Committee on Public Undertakings (1981-82): Forty-seventh Report on Oil Companies - Imports of Petroleum Crude and Products and Distribution of Gas. New Delhi: Lok Sabha, 1981.
एमएलए उद्धरणIndia. Ministry of Petroleum, Chemicals & Fertilizers. Department of Petroleum. Committee on Public Undertakings (1981-82): Forty-seventh Report on Oil Companies - Imports of Petroleum Crude and Products and Distribution of Gas. Lok Sabha, 1981.