Books by Parker, Henry Irrigation Officer, Sri Lanka
Report on the Kanakarayan-Aru
Report on the Kanakarayan-Aru and the easterm Nay-Aru balleys
Report on the Per-Aru Valley
Report on the Per-Aru Valley
Report on the Tuvarai-Aru, Akk
Report on the Tuvarai-Aru, Akkarayan-Aru, and Pali-Aru valleys
Report on the westerm Nay-Aru
Report on the westerm Nay-Aru Valley and suggestions
Report on the Iratperiyakulam-
Report on the Iratperiyakulam-Aru valley
Report on the Nossimoddei-Aru
Report on the Nossimoddei-Aru Valley