TY  - BOOK
AU  - Landers, John N ,
TI  - Zero Tillage Development in Tropical Brazil : The Story of Successful NGO Activity
SN  - 9251046727
U1  - 631.510981 
PY  - 2001///
CY  - Rome
PB  - F. A. O.
KW  - Techniques, equipment & materials
ER  -