Geological and mineral map of Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland and Tripura.
Geological Survey of India.
Survey of India.
[Calcutta?] : Geological Survey of India,
c1973.
Includes indexes.
"Based upon Survey of India map with the permission of the Surveyor General of India".
Produced to accompany Bulletins of the Geological Survey of India.
Geology
Mines and mineral resources