APA
Trivandrum E. a. s. (. o., Trivandrum E. a. s. (. o., . (1980). Report on socio-economic survey of tribals in Kera. : .
Chicago
Trivandrum Economics and statistics (Bureau of-), Trivandrum Economics and statistics (Bureau of-), . 1980. Report on socio-economic survey of tribals in Kera. : .
Harvard
Trivandrum E. a. s. (. o., Trivandrum E. a. s. (. o., . (1980). Report on socio-economic survey of tribals in Kera. : .
MLA
Trivandrum Economics and statistics (Bureau of-), Trivandrum Economics and statistics (Bureau of-), . Report on socio-economic survey of tribals in Kera. : . 1980.
