TY  - BOOK
AU  - Kaul S N
AU  - Kumar Arvind
AU  - Szpyrkowicz Lidia
TI  - Standard methods for the examination of water and wastewater .-20th Ed
SN  - 8170353424
U1  - 543 
PY  - 2004///
PB  - Daya Publishing House, Delhi-110 035
ER  -