APA استشهاد

Birla Institute of Scientific Research. (1979). Whither Coal: A study of post-nationalisation coal industry. Vision Book.

استشهاد بنمط شيكاغو

Birla Institute of Scientific Research. Whither Coal: A Study of Post-nationalisation Coal Industry. New Delhi: Vision Book, 1979.

MLA استشهاد

Birla Institute of Scientific Research. Whither Coal: A Study of Post-nationalisation Coal Industry. Vision Book, 1979.