APA
Department of Census and Statistics M. O. P. I., . (1987). Labour Force and Socio Economic Survey -1985/86 Sri Lanka. Sri Lanka: Department of Census and Statistics, Ministry Of Plan Implementation.
Chicago
Department of Census and Statistics Ministry Of Plan Implementation, . 1987. Labour Force and Socio Economic Survey -1985/86 Sri Lanka. Sri Lanka: Department of Census and Statistics, Ministry Of Plan Implementation.
Harvard
Department of Census and Statistics M. O. P. I., . (1987). Labour Force and Socio Economic Survey -1985/86 Sri Lanka. Sri Lanka: Department of Census and Statistics, Ministry Of Plan Implementation.
MLA
Department of Census and Statistics Ministry Of Plan Implementation, . Labour Force and Socio Economic Survey -1985/86 Sri Lanka. Sri Lanka: Department of Census and Statistics, Ministry Of Plan Implementation. 1987.
