00573nam a22001577a 4500003000800000005001700008008004100025040002100066082001700087110003100104245014500135260005600280300004100336500002100377650001700398BD-DhUL20181202104434.0150514s1980    u  a|||| |||| 001 0 eng d  aBD-DhULcBD-DhUL  a016.621bNAS0 aNational technical Service  aSolar water pumps : bcitations from the engineering index data base ,search period covered 1970-November1979 / cNational technical Service  aUnited States : bNational technical Service,c1980  avarious pagings : bill. ; c25 cm.   aIncludes Index. 0 aBibliography