TY  - BOOK
AU  - Ghabbour, E. A.,
TI  - Humic Substances Versatile Components of Plants, Soil and Water
SN  - 0854048553
U1  - 631 
PY  - 2000///
CY  - Cambridge
PB  - Royal Society of Chemistry Publishing
KW  - Soil Science
KW  - Techniques, equipment & materials
ER  -