1. 1/1/1982 240 pages, illustrated, photos
  2. 1/1/1995 77 pages, illustrated
  3. 1/1/2003 48 pages, illustrated, tables Research Report 66
  4. 1/7/1991 36 pages, illustrated
  5. No page numbers, illustrated, photos
  6. 1/8/1977 51 pages, illustrated
  7. 1/1/1980 No page numbers, illustrated
  8. Abstract, Water, 2015 The evolution of the major achievements in water lifting devices with emphasis on the major technologies over the centuries is presented and discussed. Valuable insights into ancient water lifting technologies with their apparent characteristics of durability, adaptability,...
  9. Recurso clave 1/12/1989 Shows how to make a simple, cheap, pump suitable for small-holding and garden use, a pump which can raise water from rivers or wells, with lifts of up to 30 metres. A simple clear text, with line drawings, showing how common materials can be used. 27 pages, illustrated.
  10. Recurso clave 21/8/2009 Most water and sanitation facilities used by households or operated by small-scale enterprises were built without external support. This shows there are alternatives to the large centralized conventional systems. More importantly, small-scale solutions have proven to be cost effective....