APA
Ceylon G. o. . P. a. E. A. (. o. )., Ceylon G. o. . P. a. E. A. (. o. )., . (1967). Economic development, 1966-68. Ceylon: Government Press Sri Lanka.
Chicago
Ceylon Government of Planning and Economic Affairs (Ministry of ), Ceylon Government of Planning and Economic Affairs (Ministry of ), . 1967. Economic development, 1966-68. Ceylon: Government Press Sri Lanka.
Harvard
Ceylon G. o. . P. a. E. A. (. o. )., Ceylon G. o. . P. a. E. A. (. o. )., . (1967). Economic development, 1966-68. Ceylon: Government Press Sri Lanka.
MLA
Ceylon Government of Planning and Economic Affairs (Ministry of ), Ceylon Government of Planning and Economic Affairs (Ministry of ), . Economic development, 1966-68. Ceylon: Government Press Sri Lanka. 1967.
