TY  - BOOK
AU  - Von Uexkull, H.R. 
TI  - Efficient fertilizer use acid upland soils of humid tropics
SN  - 9251023875
U1  - 631.8 21st ed.
PY  - 1986///
CY  - Rome
PB  - Food and Agriculture Organisation of the United Nations
KW  - Tropics
ER  -