Geological survey of India, records volume 116 part 1 annual general report 1981-82
Swaminath, J.
Geological survey of India, records volume 116 part 1 annual general report 1981-82 J. Swaminath - Calcutta Geological Survey of India 1987 - vii+319p. illus.
Geological Survey-records
55(540) / SWA
Geological survey of India, records volume 116 part 1 annual general report 1981-82 J. Swaminath - Calcutta Geological Survey of India 1987 - vii+319p. illus.
Geological Survey-records
55(540) / SWA