APA (7th ed.) Citation

Piyathilaka, M. (1989). Evaluation of surface drainage methods for imperfectly drained reddish ... [S.L.]: Author.

Chicago Style (17th ed.) Citation

Piyathilaka, Mahadurage. Evaluation of Surface Drainage Methods for Imperfectly Drained Reddish ... [S.L.]: Author, 1989.

MLA (9th ed.) Citation

Piyathilaka, Mahadurage. Evaluation of Surface Drainage Methods for Imperfectly Drained Reddish ... [S.L.]: Author, 1989.

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