00262nam a2200109Ia 4500020001800000082001500018100001800033245003900051260004200090300000800132650001200140  a9788120341715  a552bGHA/T  aGhatak, K. L  0aTechniques And Methods In Biology   bPHI Learning Pvt LtdaNew Delhic2011  a684  aBiology