TY  - BOOK
ED  - Land Use Seminar On Soil Degrandation (1980 : Wageningen)
TI  - Proceedings :  Soil degradation. Ed by D Boels etc
U1  - "U672(J:1)p1,N80, M2" 
PY  - 1982///
CY  - Rotterdam
PB  - A A Balkema     
KW  - Agricultural Geography
ER  -