Low cost water supplies and conservation a symposium held at the University of Reading on 4th July 1969 organised jointly by the Overseas Service Unit of the University of Reading and Intermediate Technology Development Group Ltd
Intermediate Technology Development Group.
University of Reading.Overseas Service Unit.
London (9 King St., W.C.2) Intermediate Technology Group Ltd Reading (White Knights, Reading RG6 2AH) University of Reading (Overseas Service Unit)
[1971]