TY  - BOOK
AU  - Motvedt, J J et.al .ed.
TI  - Micronutrients in agriculture
U1  - 631.483/MOT 
PY  - 1972///
CY  - Madison
PB  - Soil Science Society of America, Inc.
KW  - Agricultural chemistry
KW  - Micronutrient fertilizers
ER  -