TY  - BOOK
AU  - T WALLACE
TI  - THE DIAGNISIS OF MINERAL DEFICIENCIES IN PLANTS BY VISUAL SYMPTOMS
U1  - GN631.811W155 
PY  - 1961///
CY  - LONDON
PB  - HER MAJESTY,S STATIONERY OFFICE
KW  - DEFICIENCIES IN PLANTS BY VISUAL SYMPTOMS
ER  -