Orr, Alastair The Treadle pump : manual of irrigation for small farmers in Bangladesh / Alastair Orr, A.S.M. Nazrul Islam & Gunnar Barnes - Dhaka, Bangladesh : Rangpur Dinajpur Rural Service (RDRS) , 1991 - xii, 96p. : ill. ; 24 cm. Includes bibliographical references (p. 77-80). Subjects--Topical Terms: Irrigation pumps--BangladeshPedal-powered mechanisms Gov. Doc. Class. No.: BAN RDRS Tre