Patna University. Dept. of Geography. Geographical Society. (1987). Geographical perspective. Geographical Society, Dept. of Geography, Patna University.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPatna University. Dept. of Geography. Geographical Society. Geographical Perspective. Patna, India: Geographical Society, Dept. of Geography, Patna University, 1987.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিPatna University. Dept. of Geography. Geographical Society. Geographical Perspective. Geographical Society, Dept. of Geography, Patna University, 1987.
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