TY  - BOOK
AU  - Bouma, J. Bregt, A. K.
TI  - Land qualities in space and time  
SN  - 9022009734
PY  - 1989///
CY  - Netherlands
PB  - Centre for Agricultural Publishing and Documentation
KW  - Land EconomicsSoil ManagementSoil Sciences
N1  - proceedings of a symposium organized�� soil science (ISSS)
ER  -