Bourne, R. (2023). Nilambur Valley Working plan Volume I Description History and Statistics. 1917-1918. The Superintendent Government Press, Kerala.
Cita Chicago (17th ed.)Bourne, R. Nilambur Valley Working Plan Volume I Description History and Statistics. 1917-1918. The Superintendent Government Press, Kerala, 2023.
Cita MLA (9th ed.)Bourne, R. Nilambur Valley Working Plan Volume I Description History and Statistics. 1917-1918. The Superintendent Government Press, Kerala, 2023.
Atenció: Aquestes cites poden no estar 100% correctes.