00000cam a22000004a 4500 UP-99796217603100918 Buklod 20230503092542.0 m |o d | ta 040724s1983 nyua r |001 0|eng d 0471900125 (iLib)UPD-00000179569 DLC DENG eng DMLUC TD 153 C35 Cairncross, Sandy Environmental health engineering in the tropics an introductory text Sandy Cairncross and Richard G. Feachem. Chichester Wiley c1983. xiii, 283 p. ill. Sanitary engineering Tropical conditions. Sanitary engineering Developing countries. Feachem, Richard G. Book FO Monograph UPD DENG-II TD 153 C35 UPD DSURP TD 153 C35 Book