TY  - BOOK
AU  - G.KARUNAKARAN NAIR 
AU  - Dr.R.S AIYER
TI  - CONTINUOUS USE OF MUNICIPAL SEWAGE EFFLUENTS ON SOIL PHYSICAL AND CHEMICAL PROPERTIES 
U1  - E N87 KA 67  
PY  - 1987///
CY  - COLLEGE OF AGRICULTURE VELLAYANI 
PB  - DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY 
ER  -