TY  - GEN
AU  - Dewis, J.
AU  - Freitas, F
TI  - Physical and chemical methods of soil and water analysis
T2  - FAO soils bulletin 10
SN  - 92-5-102-10-8
U1  - 631.402 8 DEW 
CY  - New Delhi, Oxford & IBH publishing co. pvt. ltd
KW  - Soil science/ soil chemistry/ water analysis
ER  -