GUPTA, S. SEN. “EXCEPTIONALLY HEAVY RAINS IN AND AROUND PATNA CITY IN SEPTEMBER 1967 : A CASE STUDY OF ID-TROPOSPHERIC INTERACTION BETWEEN AN EASTERLY WAVE AD A WESTERLY WAVE”. MAUSAM 22, no. 4 (October 1, 1971): 599–600. Accessed February 28, 2024. https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/5024.