TY  - BOOK
AU  - Vlek, Paul L.G.
TI  - Micronutrients in tropical food crop production
U1  - SOILS 631.811.091.3 V85M 
PY  - 1985///
CY  - Dordrecht
PB  - Martinus Nijhoff
KW  - FOOD CROPS -- TROPICS
KW  - FIELD CROPS -- FERTILIZERS AND MANURES
ER  -