TY  - BOOK
AU  - De,N K.
AU  - Sarkar,H.K  .
TI  - Soil geography / 
U1  - 631.4 
PY  - 1993///
CY  - Kolkata : 
PB  - Sribhumi Publishing , 
KW  - SOILS
N1  - Includes bibliographical references and index
ER  -