APA
Johnson B. L. C., Scrivenor M. L., . (1981). Sri Lanka: land, people and economy. London: Heinemann Educational Books.
Chicago
Johnson Basil Leonard Clyde, Scrivenor M LeM, . 1981. Sri Lanka: land, people and economy. London: Heinemann Educational Books.
Harvard
Johnson B. L. C., Scrivenor M. L., . (1981). Sri Lanka: land, people and economy. London: Heinemann Educational Books.
MLA
Johnson Basil Leonard Clyde, Scrivenor M LeM, . Sri Lanka: land, people and economy. London: Heinemann Educational Books. 1981.