TY  - BOOK
AU  -  Miguel Angel,Florentin
AU  - Marcos Penalva
AU  - Melissa J.McDonald
ED  - FAO Fiat Panis
ED  - Plant production and protection division 
TI  - Green manure/ cover crops and crop rotation in conservation agriculture on small farms
PY  - 2011///
CY  - Rome
PB  - Food and agricultura organization of the United Nations
KW  - Agriculture
ER  -