TY  - BOOK
AU  - Hegemann, W.
AU  - IAWQ International Specialized Conference on Upgrading of Wastewater Treatment Plants
TI  - Upgrading of wastewater treatment plants 1993 /ed. by W Hegemann
SN  - 0080425461
U1  - 628.1605 
PY  - 1994///
CY  - Oxford
PB  - Pergamon
KW  - International Association on Water Quality
ER  -