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1 Kulasinghe, A. N. S.; Nanayakkara, M. B.; de Alwis, L. S. 1985. Some new types of pumping systems. Paper presented at the Seminar on the Role of Engineers in Agriculture, Sri Lanka, 18-19 November 1985. 19p.
Irrigation ; Engineering ; History ; Pumping ; Tube wells / Sri Lanka
(Location: IWMI-HQ Call no: P 179 Record No: H04025)
https://vlibrary.iwmi.org/pdf/H_4025.pdf

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