TY  - BOOK
AU  - Morgan R P C
TI  - Soil & erosion
T2  - Topic in applied geography
U1  - U672(J:1).435.N7, L9 
PY  - 1979///
CY  - London
PB  - Longman U K        
KW  - Agricultural Geography
N1  - Bib p. 104-110
ER  -