Biblio

J. Besselink, “IAD handpump project inventory mission : Niger, Burkina Faso, Ghana, Kenya, 25.11.89-14.01.90”. InterAction Design, Arnhem, The Netherlands, p. 18, 5 p.: fig., photogr., 1990.

P. Beekman and de Jongh, J., “Design rules for fatigue life of PVC rising mains and stainless steel pumprods of hand pumps”. Eindhoven University of Technology, Eindhoven, The Netherlands, p. 51 p.: fig., tab., 1989.