00311nam a22001217a 4500041001200000082001800012100001600030245005900046250001900105260003800124300001200162650001500174  aEnglish  a595.7bMET/DE  aC.L Metcalf  aDestructive and useful insects their habit and control  aFourth edition  aNew DelhibTata McGraw-Hillc1973  a1087 p.  aEntomology