APA
Kerala B. o. E. a. S. M. P. D. T. I., .Man Power Studies (Volume III). Trivandrum: .
Chicago
Kerala Bureau of Economics and Statistics Man Power Devision Trivandrum India, .Man Power Studies (Volume III). Trivandrum: .
Harvard
Kerala B. o. E. a. S. M. P. D. T. I., .Man Power Studies (Volume III). Trivandrum: .
MLA
Kerala Bureau of Economics and Statistics Man Power Devision Trivandrum India, .Trivandrum: . .
