TY  - BOOK
AU  - Kalpage, F. S. C. P.,
TI  - Tropical Soils : Classification, Fertility and Management
SN  - 333900294
U1  - 631 
PY  - 1974///
CY  - New York
PB  - Macmillan Publishing Company
KW  - Techniques, equipment & materials
KW  - Tropical Soils
ER  -