TY  - GEN
AU  - DAS, DILIP KUMAR
TI  - INTRODUCTORY SOIL SCIENCE
U1  - 631.4 DAS/IN 
CY  - LUDHIANA, KALYANI
KW  - CONCEPT OF SOIL
KW  - IMPORTANT ROCKS AND MINERALS
KW  - SOILAIR& WATER
ER  -