TY  - BOOK
AU  - Davies, G. ed.
AU  - Ghabbour, E.A. ejt. ed.
TI  - Humic substances structures, properties and uses
SN  - 0854047042
U1  - 631.47 D 286 H 
PY  - 1998///
CY  - UK
PB  - RSC
KW  - Land use
ER  -