%0 Print %0 Book %E International Symposium on the Geology & Stratigraphy of the Gondwana System (4th : 1977 : Calcutta) %E Laskar, B. %E Raja Rao, C. S., 1923- %E Geological Survey of India %I Hindustan Pub. Corp. (India) %D 1979 %C Delhi %G English %T Fourth International Gondwana Symposium : papers : January 1977, Geological Survey of India, Calcutta