TY  - BOOK
AU  - Hegemann, Werner,
AU  - Bischofsberger,W.
AU  - Englmann, E.,
ED  - Iawprc International Specialized Conference
TI  - Upgrading of wastewater treatment plants: Proceedings of the iawprc international specialized conference 
SN  - 0080407773
AV  - TD746 I58 1989
PY  - 1990///
CY  - Oxford
PB  - Pergamon Press
KW  - Plantas depuradoras de agua
KW  - Congresos
ER  -