Parker, H. (1887). Report on the Tuvarai-Aru, Akkarayan-Aru, and Pali-Aru valleys: Irrigation in the Northern Province, Mullaittivu and Vilankulam districts. George J.A. Skeen, Govt. Printer, Ceylon.
Chicago-referens (17:e uppl.)Parker, Henry. Report on the Tuvarai-Aru, Akkarayan-Aru, and Pali-Aru Valleys: Irrigation in the Northern Province, Mullaittivu and Vilankulam Districts. Colombo: George J.A. Skeen, Govt. Printer, Ceylon, 1887.
MLA-referens (8:e uppl.)Parker, Henry. Report on the Tuvarai-Aru, Akkarayan-Aru, and Pali-Aru Valleys: Irrigation in the Northern Province, Mullaittivu and Vilankulam Districts. George J.A. Skeen, Govt. Printer, Ceylon, 1887.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.