All India Seminar on Raw Materials for Glass, Ceramic, and Refractory Industries, Shillong, October 7-9, 1977
By: organised by Geological Survey of India, North Eastern Region ; Co-sponsored by Government of Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland and Tripura, and the North Eastern Council.
Publisher: s.n.; [s.n.]
Published: 1978
Place of publication: [Shillong?]
Language: eng
Number of pages: 422