TY  - BOOK
AU  - Jacob, Arthur,
TI  - Magnesium: the fifth major plant nutrient 
U1  - 581.13354 JAC 
PY  - 1958///
CY  - London
PB  - Staples
KW  - Magnesium
KW  - Plants
KW  - Nutrition
N1  - Includes bibliographical references (p.149-159)
ER  -