na INLIS000000000002490 Ind 0010-1118002490 Solar-powered desalination YATES, R. R Yates; T. Woto; J.T. Tihage Ottawa IDRC 1990 viii, 55 p. ; 24 cm. viii, 55 p. ; 24 cm. 8893-554-7 551.464YATs Bibliography p. 55 551.464 SOLAR ENERGY WATER DESALTING BOTSWANA 932/91