TY  - BOOK
AU  - American Society of Civil Engineers
TI  - Appropiate technology in water supply and waste disposal: a workshop at the Annual Convention American Society of Civil Engineers, held at Chicago Illinois on October 16-20-1978 
T2  - PB-288 174
AV  - TC 433 A44
PY  - 1978///?]
CY  - Springfield, Va.
PB  - U.S. Deptarment of Commerce, National Technical Information Service
KW  - Abastecimiento de agua
KW  - Purificación del agua
N1  - Edición fotocopiada
ER  -