TY  - BOOK
AU  - Wallace,Thomas
ED  -  Agricultural Research Council
TI  - The diagnosis of mineral deficiencies in plants by visual symptoms : : a colour atlas and guide / 
U1  - 581.21 
PY  - 1951///
CY  - London : 
PB  - H. M. Stationery Off., 
KW  - Deficiency diseases in plants
N1  -  Preface signed: Agricultural Research Council;  Corrigenda slip inserted;  Includes bibliographical references
ER  -