00000cam a22000004a 4500 UP-99796217605424449 Buklod 20230503092542.0 aa r ||| u ta 080210s1977 xx r |000 u|eng d (iLib)UPD-00000328914 eng DMLUC T 49.5 S56 Singer, Hans Wolfgang 1910- Technologies for basic needs Hans Singer. Geneva International Labor Office c1977. 158 p. Technology Developing countries. Basic needs Developing areas. Book FO Paper UPD DSOLAIR T 49.5 S56 UPD DSURP T 49.5 S56 Book