Birla Institute of Scientific Research. (1979). Whither Coal: A study of post-nationalisation coal industry. Vision Book.
シカゴスタイル引用形Birla Institute of Scientific Research. Whither Coal: A Study of Post-nationalisation Coal Industry. New Delhi: Vision Book, 1979.
MLA引用形式Birla Institute of Scientific Research. Whither Coal: A Study of Post-nationalisation Coal Industry. Vision Book, 1979.
警告: この引用は必ずしも正確ではありません.