00337cam a2200121ua 4500020001500000082001800015100002800033245005600061250000900117260006000126300001200186500001700198  a8120404181  a660.6bCHA/BI  aChakraverty, Amalendu    aBiotechnology and other alternative technologies /   a1 /   aNew Delhi : bOxford & IBH Publishing company , c1989.  a248 ; .  a18465 Scheme