SEHGAL, J
A TEXTBOOK OF PEDOLOGY: CONCEPTS AND APPLICATIONS - 2 - LUDHIANA, KALYANI 2009 - pages 516
EARTH
ROCKS
SOIL
SOIL CLASSIFICATION
SOIL DEGRADATION
SOIL SURVEY
631.4 SEH/TE
A TEXTBOOK OF PEDOLOGY: CONCEPTS AND APPLICATIONS - 2 - LUDHIANA, KALYANI 2009 - pages 516
EARTH
ROCKS
SOIL
SOIL CLASSIFICATION
SOIL DEGRADATION
SOIL SURVEY
631.4 SEH/TE