Citazione Stile APA (7a Edizione)

Ramani, R. (1981). Longwall-shortwall mining state of the art. The American Institute of Mining Metallurgical and Petroleum Engineers.

Citazione stile Chigago Style (17a edizione)

Ramani, R.V. Longwall-shortwall Mining State of the Art. New York: The American Institute of Mining Metallurgical and Petroleum Engineers, 1981.

Citatione MLA (9a ed.)

Ramani, R.V. Longwall-shortwall Mining State of the Art. The American Institute of Mining Metallurgical and Petroleum Engineers, 1981.