TY  - BOOK
AU  - Dudal,Rene a
TI  - Dark clay soils of tropical and subtropical regions
PY  - 1965///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
KW  - Clay
KW  - Soils
KW  - Tropics
N1  - Bibliography: p. 148-161
ER  -