APA (7th ed.) Citation

(1989). External trade indices 1984-1987. Department of Census Statistice.

Chicago Style (17th ed.) Citation

External Trade Indices 1984-1987. Colombo: Department of Census Statistice, 1989.

MLA (9th ed.) Citation

External Trade Indices 1984-1987. Department of Census Statistice, 1989.

Warning: These citations may not always be 100% accurate.