APA
"Sri Lanka P. I. (. C. a. S. (. o. )., "Sri Lanka P. I. (. C. a. S. (. o. )., .Sri Lanka economic atlas. "Columbo,": Govt. Press.
Chicago
"Sri Lanka Plan Implementation (M/o-) Census and Statistics (Deptt of )", "Sri Lanka Plan Implementation (M/o-) Census and Statistics (Deptt of )", .Sri Lanka economic atlas. "Columbo,": Govt. Press.
Harvard
"Sri Lanka P. I. (. C. a. S. (. o. )., "Sri Lanka P. I. (. C. a. S. (. o. )., .Sri Lanka economic atlas. "Columbo,": Govt. Press.
MLA
"Sri Lanka Plan Implementation (M/o-) Census and Statistics (Deptt of )", "Sri Lanka Plan Implementation (M/o-) Census and Statistics (Deptt of )", ."Columbo,": Govt. Press. .
