00321nam a2200145Ia 4500008004100000082000800041082000800049100002400057245002600081260001400107260002500121260000900146300000800155650001200163230706s9999    xx            000 0 und d  a570  bVER  aVERMA(P.S.)&AGARWAL 0aEnvironmental Biology  aNew Delhi  bS.CHAND PUBLICATIONS  c1995  a591  aBiology