1. Environment, Ecological Science and Disaster Management Character Publication, Ahmedabad. Author Editor - Dr. Kapesh or dentist
2. Wordsworth, William (1835). A guide through the district of the lakes in the north of England with a description of the scenery, &c. for the use of tourists and residents (5th ed.). Kendal, England: Hudson and Nicholson. p. 88.
3..Fleming, James R.; Bethany R. Knorr. "History of the Clean Air Act". American Meteorological Society. Retrieved 14 February2006.
4..Stebbing, E.P (1922). The Forests of India. 1. pp. 72–81.
5..Barton, Greg (2002). Empire Forestry and the Origins of Environmentalism. Cambridge University Press. p. 48. ISBN 9781139434607.
6..MUTHIAH, S. (5 November 2007). "A life for forestry". Metro Plus Chennai. Chennai, India: The Hindu. Retrieved 9 March2009.