TY  - BOOK
AU  - Laura van Scholl 
TI  - Soil Fertility Management
SN  - 90-77073-03-5 
PY  - 2004///
CY  - Netherlands
PB  - Agromisa Foundation, Wageningen
UR  - opac.ascot.edu.ph/ebooks/AGRICULTURE/Soil-Fertility-Management.pdf
ER  -