Operational Research Executive & National Coal Board. (1978). Liquid fuels from coal. National Coal Board.
Chicago Edition CitationOperational Research Executive and National Coal Board. Liquid Fuels from Coal. National Coal Board, 1978.
MLA Edition CitationOperational Research Executive and National Coal Board. Liquid Fuels from Coal. National Coal Board, 1978.
Warning: These citations may not always be 100% accurate.