Parker, H. (1886). Report on the Nossimoddei-Aru Valley: Irrigation in the Northern Province, Vavuniyan-Vilankulam district[s]. George J.A. Skeen, Govt. Printer, Ceylon.
Chicago-referens (17:e uppl.)Parker, Henry. Report on the Nossimoddei-Aru Valley: Irrigation in the Northern Province, Vavuniyan-Vilankulam District[s]. Colombo ": George J.A. Skeen, Govt. Printer, Ceylon, 1886.
MLA-referens (8:e uppl.)Parker, Henry. Report on the Nossimoddei-Aru Valley: Irrigation in the Northern Province, Vavuniyan-Vilankulam District[s]. George J.A. Skeen, Govt. Printer, Ceylon, 1886.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.