TY  - BOOK
AU  - Wolterink,Timothy J.
ED  - United States.
TI  - Identifying sources of subsurface nitrate pollution with stable nitrogen isotopes
U1  -  628.168 
PY  - 1979///
CY  - Washington, D. C.
PB  - United States Government Printing Office
KW  - Factory and trade waste
KW  - Sewage
KW  - Purification
ER  -