Dark clay soils of tropical and subtropical regions /
edited by R. Dudal, under the general direction of D. Luis Bramao.
- Rome : FAO of the United Nations, 1965.
- x, 161 p. : ill.
- FAO agricultural development paper ; no. 83 .
Clay soils--Tropics.
Clay--Tropics.
Soils--Tropics.
Clay soils--Tropics.
Clay--Tropics.
Soils--Tropics.