00360nam a2200157Ia 4500008004100000020000900041035001000050082001600060100001900076245004000095250000600135260003800141300000800179500000900187650000600196210723s9999||||xx |||||||||||||| ||und||  aNULL  a32504  a574.52BNAI  aNair, P. K. G. 0aPrinciples Of Environmental Biology  a-  aBombaybHimalaya Publishing House  a190  a3736  a-