TY  - BOOK
AU  - Trudgill Stephan T
TI  - Soil and vegetation systems
T2  - Contemporary Problems in Geography
U1  - J:1, L7;M8 
PY  - 1988///
CY  - Oxford
PB  - Clarendon Press         
KW  - Agriculture
N1  - Bibliography P 186-202; Glossary P 184-85
ER  -