TY  - BOOK
AU  - Gates,Jane Potter
TI  - Green manures and cover crops: january 1987 - september 1991
T2  - Quick bibliography series
SN  - 1052-5378
U1  - 631.874016 
PY  - 1991///
CY  - Maryland, EUA
PB  - National Agricultural Library
KW  - Abonos verdes
KW  - Bibliografía
KW  - Cultivos de cobertura
ER  -