TY  - BOOK
AU  - "Loneragam, J. F"
TI  - Copper in soils and plants
U1  - 546.56:631.41:581 M1 
PB  - "New York : Academic Press Inc, 1981"
KW  - "Robson, A. D"
KW  - Copper ; Soils - Copper contents
ER  -