APA
"Ceylon P. a. E. (., "Ceylon P. a. E. (., . (1971). "Five year plan ,1972-76". : .
Chicago
"Ceylon Planning and Employment (M/O)", "Ceylon Planning and Employment (M/O)", . 1971. "Five year plan ,1972-76". : .
Harvard
"Ceylon P. a. E. (., "Ceylon P. a. E. (., . (1971). "Five year plan ,1972-76". : .
MLA
"Ceylon Planning and Employment (M/O)", "Ceylon Planning and Employment (M/O)", . "Five year plan ,1972-76". : . 1971.
