00283nam a22000977a 4500020001800000082001900018100002400037245008100061260003500142300000800177  a9788176223133  a631.4bAVI /SO  aAvinash Singh Tomar  aSoil Science: A Practical Perspective with Glossary and Facts about the Soil  aNew DelhibBiotech Booksc2014  a190