TY  - BOOK
AU  - Helmer, Richard.
AU  - Hespanhol, Ivanildo.
ED  - World Health Organization.
TI  - Water pollution control: a guide to the use of water quality management principles 
SN  - 0419229108
PY  - 1997///
CY  - London
PB  - E & FN Spon
KW  - Water pollution
KW  - prevention and control
KW  - Water quality
KW  - Wastewater treatment plants
KW  - Water resources development
KW  - case studies
KW  - Manuals
KW  - India
KW  - China
KW  - Philippines
KW  - Nigeria
KW  - South Africa
KW  - Brazil
KW  - Mexico
KW  - Europe
KW  - Russian Federation
KW  - Cyprus
KW  - Jordan
KW  - Yemen
N1  - Published on behalf of the United Nations Environment Programme, Water Supply and Collaborative Council, World Health Organization
UR  - http://apps.who.int/iris/
ER  -