APA
Dudal R. (., . (1965). Dark clay soils of tropical and subtropical regions. Rome: FAO.
Chicago
Dudal R (ed), . 1965. Dark clay soils of tropical and subtropical regions. Rome: FAO.
Harvard
Dudal R. (., . (1965). Dark clay soils of tropical and subtropical regions. Rome: FAO.
MLA
Dudal R (ed), . Dark clay soils of tropical and subtropical regions. Rome: FAO. 1965.