000 00282nam a2200133Ia 4500
008 160316s1981 xxu||||| |||| 00| 0 eng d
020 _a
100 _aDas , B M
245 _aMicroevolution
250 _a1ST
260 _aNEW DELHI
_bCONCEPT
_c1981
300 _a104
700 _a
_a
999 _c9920
_d9920