Biblio

B. S. Dixit en Potts, P. W., “Laboratory testing of hand-operated water pumps”, vol. no. 131. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. viii, 178 p., 1984.

P. W. Potts, “The aid hand-operated water pump : a classic example of technology transfer”. Georgia Institute of Technology, Atlanta, GA, USA, p. i, 55 p. : 23 fig., 1981.

P. W. Potts, Moh, K. C., Whipple, J. H., en Craft, T. F., “Final report on the utilization/evaluation of an aid hand-operated water pump”. Georgia Institute of Technology, Atlanta, GA, USA, p. x + 147 p. : fig., tab., 1979.