1. IOR/V/20/197 Reference (shelfmark): IOR/V/20/197 Title: Geological Survey of India Bulletins Series A: Economic Geology, 1. Preliminary report on coal suitable for the manufacture of synthetic petroleum. A. B. Dutt and others. 1950 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1950 Extent: 1 volume