Fraenkel, P. (1986). Water-pumping devices: A handbook for users and choosers. London: Intermediate Technology.
Chicago Stili AlıntıFraenkel, Peter. Water-pumping Devices: A Handbook for Users and Choosers. London: Intermediate Technology, 1986.
MLA AlıntıFraenkel, Peter. Water-pumping Devices: A Handbook for Users and Choosers. London: Intermediate Technology, 1986.
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