TY  - BOOK
AU  - United  Nations Educational and Scientific Organisation.
TI  - Soils and tropical weathering
T2  - Natural resources research:  no.11
U1  - 574.54 
PY  - 1971///
CY  - Paris
PB  - Unesco
N1  - Proceedings of the Bandung symposium 16-23 Nov,1969
ER  -