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India. Ball, V. (1869). ‘The Ramgurh Coal-Field’, extract of <em data-mce-fragment="1">The</em> <em data-mce-fragment="1">Memoirs of the Geological Survey of India</em>,
India. Ball, V. (1869). ‘The Ramgurh Coal-Field’, extract of <em data-mce-fragment="1">The</em> <em data-mce-fragment="1">Memoirs of the Geological Survey of India</em>,
India. Ball, V. (1869). ‘The Ramgurh Coal-Field’, extract of <em data-mce-fragment="1">The</em> <em data-mce-fragment="1">Memoirs of the Geological Survey of India</em>,

India. Ball, V. (1869). ‘The Ramgurh Coal-Field’, extract of The Memoirs of the Geological Survey of India,

Geological Survey of India

India. Ball, V. (1869). ‘The Ramgurh Coal-Field’, extract of The Memoirs of the Geological Survey of India, vol. 6, pp. 1-27, + 1 foldout map, hand-coloured, ‘Bokaro and Ramgurh Coal Fields, 1:253,440, 23 x 42cm. Text and maps clean. In very good condition. Now referred to as Ramgarh in Jarkhand state.