Johnson, B. (1981). South Asia: Selective studies of the essential geography of India, Pakistan, Bangladesh, Sri Lanka and Nepal. Heinemann Educational Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJohnson, B.L.C. South Asia: Selective Studies of the Essential Geography of India, Pakistan, Bangladesh, Sri Lanka and Nepal. Heinemann Educational Books, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJohnson, B.L.C. South Asia: Selective Studies of the Essential Geography of India, Pakistan, Bangladesh, Sri Lanka and Nepal. Heinemann Educational Books, 1981.
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