TY  - GEN
AU  - Worthen,Edmund L.
AU  - Aldrich,Samuel R.
TI  - Farm Soils: Their fertilization and management / 
U1  - 631.81 
PY  - 1956///0000
CY  - New York, U.S.A
PB  - John Wiley
 Sons
KW  - SUELOS-FERTILIDAD
KW  - ABONOS
N1  - Texto en Biblioteca Central
ER  -