TY  - BOOK
AU  - Kalpage F S C P
TI  - Tropical soils:  Classification, fertility and mana   
SN  - 333900294
U1  - X9(J:1).192.N7, L4 
PY  - 1974///
CY  - Delhi
PB  - Macmillan India         
KW  - Soil Industry
ER  -