TY  - BOOK
AU  - Dewis, J.
TI  - Physical and chemical methods of soil and water analysis
T2  - FAO soils Bulletin, 10
U1  - 631.42' 412 M4 
PY  - 1984///
CY  - New Delhi
PB  - Oxford and IBH
KW  -  J.Dewis and F.Freitas.
KW  - Freitas, F., joint author
KW  - Soil analysis,Soil chemistry
ER  -