TY  - GEN
AU  - Kalpage, F S C P
TI  - Tropical soils: Classification, fertility and management
SN  - 33390 0294
U1  - 631.491 3 KAL 
CY  - New Delhi, Mac Millan Company
KW  - Soil scuience/ Soil- Classification- Tropics/ Soil-fertility- Tropics/ Soil management
ER  -