00697nam a22002417a 4500003000400000020001800004082001800022100001600040245008400056250001200140260004000152300000900192534000900201546001200210650005400222650002700276650001800303650002000321650001800341650004200359650002000401650003400421OSt  a9789327238884  a631.2bPAN/PR  aPandey, P H  aPrinciples and practices of agricultural structures and environmental control    a2, rev.  aNew DelhibKalyani Publishersc2014  a494p  n2004  aEnglish  aAgricultural Structures and Environmental Control  aAgricultural structure  aFarm Building  aDairy Buildings  aPoultry House  aFarm Workshop and farm machinery shed  aUse of Plastics  aPollution Causes and Remedies