India. Coal Board. Publication and Statistics Wing. Coal directory of India. Publication and Statistics Wing, Coal Board.
Citación estilo ChicagoIndia. Coal Board. Publication and Statistics Wing. Coal Directory of India. Calcutta: Publication and Statistics Wing, Coal Board.
Cita MLAIndia. Coal Board. Publication and Statistics Wing. Coal Directory of India. Publication and Statistics Wing, Coal Board.
Warning: These citations may not always be 100% accurate.