APA (7th ed.) Citation

Ratnaweera, D. D. S. New agricultural setlement schemes. Colombo Apothecaries.

Chicago Style (17th ed.) Citation

Ratnaweera, D. De S. New Agricultural Setlement Schemes. Colombo: Colombo Apothecaries.

MLA (9th ed.) Citation

Ratnaweera, D. De S. New Agricultural Setlement Schemes. Colombo Apothecaries.

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