Ramani, R. V. (1997). Proceedings of the 6th International Mine Ventilation Congress: May 17-22, 1997, Pittsburgh, Pennsylvania, USA. Littleton, CO.: Society for Mining, Metallurgy, and Exploration.
Παραπομπή Chicago StyleRamani, Raja V. Proceedings of the 6th International Mine Ventilation Congress: May 17-22, 1997, Pittsburgh, Pennsylvania, USA. Littleton, CO.: Society for Mining, Metallurgy, and Exploration, 1997.
Παραπομπή MLARamani, Raja V. Proceedings of the 6th International Mine Ventilation Congress: May 17-22, 1997, Pittsburgh, Pennsylvania, USA. Littleton, CO.: Society for Mining, Metallurgy, and Exploration, 1997.
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