TY  - BOOK
AU  - Dudal, R. [from old catalog]
TI  - Dark clay soils of tropical and subtropical regions
AV  - S401.U6 A13 nos. 93
U1  - 631.4 
PY  - 1965///
CY  - Rome
PB  - Food and Agriculture Organization of the United Nations
N1  - Includes bibliographical references and index
ER  -