APA
Kerala G. o. . E. a. S. (. o. )., Kerala G. o. . E. a. S. (. o. )., .Annual survey of industries. Trivandrum: Government Press India.
Chicago
Kerala Government of Economics and Statistics (Bureau of ), Kerala Government of Economics and Statistics (Bureau of ), .Annual survey of industries. Trivandrum: Government Press India.
Harvard
Kerala G. o. . E. a. S. (. o. )., Kerala G. o. . E. a. S. (. o. )., .Annual survey of industries. Trivandrum: Government Press India.
MLA
Kerala Government of Economics and Statistics (Bureau of ), Kerala Government of Economics and Statistics (Bureau of ), .Trivandrum: Government Press India. .
