Bourne, R.2023-11-222023-11-221921Bourne, R. (1921) Nilambur Valley Working plan Volume I Description History and Statistics. 1917-1918. The Superintendent Government Press, Kerala.https://frirepo.bestbookbuddies.com/handle/123456789/2915enNilambur Valley Working plan Volume I Description History and Statistics. 1917-1918.Book